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Find the connector diagram and pin assignments for your original Volkswagen radio. Select the matching head unit below.
Match the radio part number and connector keying before wiring. Confirm the viewing direction against the numbers on the connector. N.C. means no connection.
Volkswagen (2002-2010) Radio Navigation System 2 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 7L6035191R, 7L6035191B, 7L6035191C, 7L6035191RE
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Right rear speaker +
2
Right front speaker +
3
Left front speaker +
4
Left rear speaker +
5
Right rear speaker −
6
Right front speaker −
7
Left front speaker −
8
Left rear speaker −
9
CAN high
10
CAN low
11
Radio muting (during telephone use)
12
Negative connection, terminal 31
13
Connector for ignition key-controlled switching on and off (S contact)
14
Alarm system terminal (optional)
15
Positive connection, terminal 30
16
Antitheft system control signal, SAFE
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
External audio output, left
2
External audio input ground
3
Line out, left
5
Driving directions low frequency (+)
6
Telephone audio signal input −
7
External audio input, right
8
Line out, ground
9
Line out, right
11
Driving directions low frequency (-)
12
Telephone audio signal input +
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Headphone audio signal output, right +
2
CD changer, left and right port, ground
3
Headphone audio signal output, right −
4
CD changer, voltage supply +
6
CD changer, data out bus
8
CD changer, left port audio +
9
CD changer, right port audio +
10
CD Changer, control signal
11
CD changer, data in bus
12
CD changer, clock bus
18-pin auxiliary connector. The socket face and keying are awaiting confirmation.
18-pin auxiliary connector · pin assignments
Pin
Function
2
Audio signal ground
3
Audio signal ground
4
Shielding ground
5
Video signal ground
6
Video switching signal
7
Video signal ground
8
Video signal ground
9
Video signal ground
11
Audio signal, left
12
Audio signal, right
13
Shielding ground
14
Synchronization of vertical and horizontal picture signals
15
50 Hertz/60 Hertz
16
Signal input for picture signal blue
17
Signal input for picture signal green
18
Signal input for picture signal red
Volkswagen (2003-2010) R100 Caddy Car Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1k0035153c
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
11
Telephone mute
12
Ground (terminal 31)
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
3
CD audio ground
4
CD supply
6
CD data out
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
6
Telephone audio −
12
Telephone audio +
Volkswagen (2003-2011) CD Changer
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Connector-family reference. Confirm the module socket and its numbering before wiring.
may be used to connect aftermarket MP3 player
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Right headphone positive
2
CD audio common
3
Right headphone negative
4
CD supply
6
CD data out
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Volkswagen (2003-2012) RCD 210 Car Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
RCD210: p/n 7E0035156B. For Amarok, Caddy, Golf 5, Golf 6, Jetta, Passat, Polo, Polo Sedan, Tiguan, Touran, Transporter T5, Caravelle T5.
The RCD 210 source labels the radio and connector family, but the numbered assignments still need confirmation.
Volkswagen (2004-2012) RCD 300, RCD 500 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right Speaker +
2
Front right Speaker +
3
Front left Speaker +
4
Rear left Speaker +
5
Rear right Speaker −
6
Front right Speaker −
7
Front left Speaker −
8
Rear left Speaker −
9
CAN bus, high
10
CAN bus, low
11
Telephone mute switch
12
Voltage supply −, terminal 31
15
Voltage supply +, terminal 30
16
Anti-theft coding control signal, SAFE +
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Right headphone signal output +
2
CD changer, left and right port −
3
Headphone signal output, audio ground
4
CD changer, voltage supply +, terminal 30, contact continuous load greater than 1 A, temporary peak load 5 A
5
Left headphone signal output +
6
CD changer, DATA OUT
8
CD changer, left audio channel, CD/L
9
CD changer, right audio channel, CD/R
10
CD changer, control line, switched positive
11
CD changer, DATA IN
12
CD changer, CLOCK
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
6
Telephone audio input signal −
12
Telephone audio input signal +
Volkswagen (2004-2016) RNS MFD2 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1K0035198C
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Right rear speaker +
2
Right front speaker +
3
Left front speaker +
4
Left rear speaker +
5
Right rear speaker −
6
Right front speaker −
7
Left front speaker −
8
Left rear speaker −
9
CAN high
10
CAN low
11
Radio muting (during telephone use)
12
Negative connection, terminal 31
13
Connector for ignition key-controlled switching on and off (S contact)
14
Alarm system terminal (optional)
15
Positive connection, terminal 30
16
Antitheft system control signal, SAFE
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
3
Line out, left
5
Driving directions low frequency (+)
6
Telephone audio signal input −
8
Line out, ground
9
Line out, right
11
Navigation language, driving directions −
12
Telephone audio signal input +
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Digital satellite radio tuner input, audio left
2
CD changer, left and right port, ground
3
Digital satellite radio tuner input, audio ground
4
CD changer, voltage supply +
5
Digital satellite radio tuner input continuous positive, terminal 30
6
CD changer, data out bus
7
Digital satellite radio tuner input, audio right
8
CD changer, left port audio +
9
CD changer, right port audio +
10
CD Changer, control signal
11
CD changer, data in bus
12
CD changer, clock bus
18-pin auxiliary connector. The socket face and keying are awaiting confirmation.
18-pin auxiliary connector · pin assignments
Pin
Function
2
Audio signal ground
3
Audio signal ground
4
Shielding ground
5
Video signal ground
6
Video switching signal
7
Video signal ground
8
Video signal ground
9
Video signal ground
11
Audio signal positive, left
12
Audio signal positive, right
13
Shielding ground
14
Synchronization of vertical and horizontal picture signals
15
50 Hertz/60 Hertz
16
Signal input for picture signal blue
17
Signal input for picture signal green
18
Signal input for picture signal red
Volkswagen (2004-2019) Jetta, Amarok Base Radio Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 5K0035156
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
11
Telephone mute
12
Ground (terminal 31)
15
Battery positive (terminal 30)
Volkswagen (2006-2010) Premium 7 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Connector-family reference. Confirm the module socket and its numbering before wiring.
p/n 1k0035180c (CQ-EV1460LC), 1K0035180D (CQ-1462XA), 1k0035180a, 1K0035180DEL, 3C8035180A (CQ-EV14612G)
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Right rear speaker, plus
2
Right front speaker, plus
3
Left front speaker, plus
4
Left rear speaker, plus
5
Right rear speaker, minus
6
Right front speaker, minus
7
Left front speaker, minus
8
Left rear speaker, minus
9
CAN bus, positive
10
CAN bus, negative
11
Telephone mute switch
12
Negative connection, terminal 31
13
Radio on, cAlarm contactontrol wire positive
15
Positive connection, terminal 30
16
Antitheft system control signal, SAFE
16 pin B connector. The socket face and keying are awaiting confirmation.
16 pin B connector · pin assignments
Pin
Function
1
Digital satellite radio tuner, input, left audio signal
3
Digital satellite radio tuner, input, audio signal negative
5
Digital satellite radio tuner input, continuous positive
7
Digital satellite radio tuner, input, right audio signal
16 pin C connector. The socket face and keying are awaiting confirmation.
16 pin C connector · pin assignments
Pin
Function
6
Telephone LF-signal input, minus
12
Telephone LF-signal input, plus
Volkswagen (2006-2014) RCD 2001 Crafter Head Unit
Master connector reference · 36-pin ISO / mini-ISO LINE OUT OPTION CD 1 4 7 10 13 16 19 3 6 9 12 15 18 2 5 8 11 14 17 20 1 3 5 7 2 4 6 8 1 3 5 7 2 4 6 8 C B A
p/n 2E0057163E; p/n 2E0057163G (after 2009). Also for Mercedes Sprinter Vito (2006-2013), Viano A-Klasse
ISO block C · numbered reference view
1 4 7 10 13 16 19
3 6 9 12 15 18
2 5 8 11 14 17 20
ISO block C · pin assignments
Pin
Function
1
Telephone NF left +
2
Telephone NF right +
3
Telephone NF −
4
Telephone mute, switching to mute when telephone is used (parallel to pin 3 of multi-pin connector 5)
6
CD changer “ON” · N/A
7
Battery voltage supply + · reserved for external device
8
Digital earth · reserved for external device
9
CD changer, DATA (exchange of data for dash panel with time display) · reserved for external device
10
CD changer, CLOCK · reserved for external device
11
CD changer “RESET” · reserved for external device
18
CD changer, left and right channels, audio − · Connection for external audio sources −
19
CD changer, left audio channel +, CD/L · Left connection for external audio sources +
20
CD changer, right audio channel +, CD/R · Right connection for external audio sources +
ISO block B · numbered reference view
ISO block B · pin assignments
Pin
Function
1
Rear right Speaker +
2
Rear right Speaker −
3
Front right Speaker +
4
Front right Speaker −
5
Front left Speaker +
6
Front left Speaker −
7
Rear left Speaker +
8
Rear left Speaker −
ISO block A · numbered reference view
ISO block A · pin assignments
Pin
Function
2
Self-diagnosis, K-wire in models before 2008, later N/A
3
Telephone mute, mute switch for telephone operation
4
Positive voltage supply, terminal 30
5
Aerial circuit output and also optionally for auxiliary blower for radio
6
CAN bus, high
7
CAN bus, low
8
Negative voltage supply, terminal 31
Volkswagen (2006-2015) RNS 510 Quadlock Car Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1T0035680HX, 7N5035686A, 3C0035684, 3C0035684B, 3C0035684C, 3C0035684E, 1T0035680B, 1T0035680C
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
11
Display supply, Low version
12
Ground (terminal 31)
13
Display CAN low, Low version
14
Display CAN high, Low version
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX left
2
AUX ground
3
CD audio ground
4
CD supply
6
CD data out
7
AUX right
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input −
2
AUX output right
3
AUX output ground
4
Microphone output −
5
Telephone left −
6
Telephone right −
7
Microphone input +
8
AUX output left
9
Microphone output +
10
Telephone mute
11
Telephone left +
12
Telephone right +
26-pin video socket · numbered reference view
13 12 11 10 9 8 7 6 5 4 3 2 1
26 25 24 23 22 21 20 19 18 17 16 15 14
26-pin video socket · pin assignments
Pin
Function
4
RGBS input return
6
Telephone detect
7
Telephone cradle key functions
8
Telephone antenna diagnosis
9
RGBS input return
10
Right audio input
11
Video shield ground
12
Video sync input
13
Green video input
19
Telephone cradle ground
20
Telephone switched battery supply
22
Audio input return
23
Left audio input
24
RGBS input return
25
Blue video input
26
Red video input
Volkswagen (2006-2016) RCD 4001, RNS 5001 Crafter Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 2E0035152D (RNS5001)
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right Speaker +
2
Front right Speaker +
3
Front left Speaker +
4
Rear left Speaker +
5
Rear right Speaker −
6
Front right Speaker −
7
Front left Speaker −
8
Rear left Speaker −
9
CAN bus, low
10
Telephone mute, mute switch for radio
11
CAN bus, high
12
Voltage supply −, terminal 31
13
Aerial voltage supply +
15
Voltage supply +, terminal 30
16
Wake-up line
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Voltage supply for supplementary blower for radio −
5
AUX screening
6
AUX connection, left channel +
7
Voltage supply for supplementary blower for radio +
8
Supplementary blower for radio, diagnostics
11
AUX connection − for both channels
12
AUX connection, right channel +
Volkswagen (2006-2019) RCD 310 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1K0035186AN, 1K0035186AA
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Right rear speaker +
2
Right front speaker +
3
Left front speaker +
4
Left rear speaker +
5
Right rear speaker −
6
Right front speaker −
7
Left front speaker −
8
Left rear speaker −
9
CAN high
10
CAN low
11
Supply voltage supply, connected +
12
Negative connection, terminal 31
13
CAN-Bus display −
14
CAN-Bus display +
15
Positive connection, terminal 30
16
Antitheft system control signal, SAFE
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input −
2
AUX output, audio, right positive
3
AUX output, audio −
4
Microphone output −
5
Left telephone LF signal input −
6
Right telephone LF signal input −
7
Microphone input +
8
AUX output, audio, left positive
9
Microphone output +
10
Telephone mute
11
Telephone LF signal input, left positive
12
Telephone LF signal input, right positive
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX input, audio, left positive
2
AUX input, audio −
3
CD changer, audio −
4
CD changer, voltage supply +
5
n/a
6
CD changer, data out bus
7
AUX input, audio, right positive
8
CD changer, left port audio +
9
CD changer, right port audio +
10
CD Changer, control signal
11
CD changer, data in bus
12
CD changer, clock bus
Volkswagen (2006-2020) RCD 510 Premium 8 Car Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 56D035190A
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right Speaker (+)
2
Front right Speaker (+)
3
Front left Speaker (+)
4
Rear left Speaker (+)
5
Rear right Speaker (-)
6
Front right Speaker (-)
7
Front left Speaker (-)
8
Rear left Speaker (-)
9
CAN bus, high
10
CAN bus, low
12
Terminal 31
15
Terminal 30
16
Permanent plus, connected to PIN 15, anti-theft alarm system
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Audio input, left, connection for external audio sources / multimedia system control unit
2
Audio input earth connection for external audio sources / control unit for multimedia system
3
Audio earth, CD
4
Terminal 30, CD
6
CD data out
7
Audio input, right, connection for external audio sources / multimedia system control unit
8
Audio left, CD
9
Audio right, CD
10
Control signal, CD
11
CD data in
12
CD-CLK
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input (-)
2
Audio output right
3
Audio output earth
4
Microphone output (-)
5
Telephone LF input signal left (-)
6
Telephone LF input signal right (-)
7
Microphone input (+)
8
Audio output left
9
Microphone output (+)
10
Telephone mute
11
Telephone LF input signal left (+)
12
Telephone LF input signal right (+)
26-pin video socket · numbered reference view
13 12 11 10 9 8 7 6 5 4 3 2 1
26 25 24 23 22 21 20 19 18 17 16 15 14
26-pin video socket · pin assignments
Pin
Function
4
Screening, earth
5
Video output LF right
6
Video output earth
7
Video output sync
8
Video output green
9
Screening, earth
10
Video input LF right
11
Video input earth
12
Video input sync
13
Video input green
17
Video output LF earth
18
Video output LF left
19
Video output RGBS (-)
20
Video output blue
21
Video output red
22
Video input LF (-)
23
Video input LF left
24
Video input RGBS (-)
25
Video input blue
26
Video input red
Volkswagen (2008-2016) RCD 3002, RCD 4002, RNS 4010, RNS 5010 Crafter Head Units
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 2E0057158K (RCD3002), p/n 2E0057158L (RCD4002), 2E0051859R (RNS 5010)
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right Speaker +
2
Front right Speaker +
3
Front left Speaker +
4
Rear left Speaker +
5
Rear right Speaker −
6
Front right Speaker −
7
Front left Speaker −
8
Rear left Speaker −
9
CAN bus, low
10
Telephone mute, mute switch for radio (N/A for RNS 5010)
11
CAN bus, high
12
Voltage supply −, terminal 31
13
N/A
14
Shielding CAN bus (N/A for RNS 5010)
15
Voltage supply +, terminal 30
16
N/A
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input +
2,5,6,8,11,12
N/A
3
Microphone input, screening (N/A for RNS 5010)
4
Microphone output + (N/A for RNS 5010)
7
Cradle On/Off
9
Microphone −
10
Microphone output − (N/A for RNS 5010)
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1,5,6,11,12
N/A
2
External supplementary blower
3
Screen for external audio source connection
4
Left connection for external audio sources +
7
Diagnostics for external supplementary blower
8
External supplementary blower
9
Connection for external audio sources −
10
Right connection for external audio sources +
Volkswagen (2010-2016) RNS 315, 315+ Car Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1K0035274D, 1K0035274K
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right Speaker (+)
2
Front right Speaker (+)
3
Front left Speaker (+)
4
Rear left Speaker (+)
5
Rear right Speaker (-)
6
Front right Speaker (-)
7
Front left Speaker (-)
8
Rear left Speaker (-)
9
CAN bus, high
10
CAN bus, low
12
Terminal 31
15
Terminal 30
16
Permanent plus, connected to PIN 15, anti-theft alarm system
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
Audio input, left, multimedia system control unit
2
Audio input earth multimedia system control unit
3
Audio earth, CD
4
Terminal 30, CD
6
CD data out
7
Audio input, right, multimedia system control unit
8
Audio left, CD
9
Audio right, CD
10
Control signal, CD
11
CD data in
12
CD-CLK
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input (-)
4
Microphone output (-)
5
Telephone LF input signal left (-)
6
Telephone LF input signal right (-)
7
Microphone input (+)
9
Microphone output (+)
10
Telephone mute
11
Telephone LF input signal left (+)
12
Telephone LF input signal right (+)
26-pin video socket · numbered reference view
13 12 11 10 9 8 7 6 5 4 3 2 1
26 25 24 23 22 21 20 19 18 17 16 15 14
26-pin video socket · pin assignments
Pin
Function
4
Video input RGBS earth
6
Switch-on signal from telephone bracket
7
Processing of button operation from telephone bracket
8
Aerial diagnosis, to telephone bracket
9
Video input RGBS earth
11
Video input earth
12
Video input sync
13
Video input green
20
Terminal 30, switched, to telephone bracket
24
Video input RGBS earth
25
Video input blue
26
Video input red
Volkswagen (2010-2018) RCD 550 Touareg Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 7P6035195B
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Right Rear Speaker +
2
Right Front Speaker +
3
Left Front Speaker +
4
Left Rear Speaker +
5
Right Rear Speaker −
6
Right Front Speaker −
7
Left Front Speaker −
8
Left Rear Speaker −
9
CAN bus high +
10
CAN bus low −
11
n/a
12
Power Supply −, Terminal 31
13
UART TxD
14
UART RxD
15
Power supply +, terminal 30
16
n/a
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
5
Left Telephone Audio Input Signal −
6
Right Telephone Audio Input Signal −
10
Telephone Mute (Radio Mute)
11
Left Telephone Audio Input Signal +
12
Right Telephone Audio Input Signal +
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Left Input AUX Signals
2
AUX Signal Ground
7
Right Input AUX Signals
Volkswagen (2010-2018) RNS 850 Touareg Head Unit, Display and Radio Module
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Connector-family reference. Confirm the module socket and its numbering before wiring.
p/n 7P6035670M, 7P6 035 670 M (head unit) NOT TESTED!
The RNS 850 reference is marked untested. The complete head-unit and display connector layouts still need confirmation.
Volkswagen (2010-2018) Touareg, Audi RNS 850 Radio Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Connector-family reference. Confirm the module socket and its numbering before wiring.
p/n 4G0035061S, 4G0 035 061 S
Radio module · multipin connector. The socket face and keying are awaiting confirmation.
Radio module · multipin connector · pin assignments
Pin
Function
1
Right Rear Speaker, Positive
2
Right Front Speaker, Positive
3
Left Front Speaker, Positive
4
Left Rear Speaker, Positive
5
Right Rear Speaker, Negative
6
Right Front Speaker, Negative
7
Left Front Speaker, Negative
8
Left Rear Speaker, Negative
9
Speaker subwoofer, positive
10
Center speaker, positive
11
Diag Speaker/ Ring-Break Diagnostic Cable
12
n/a
13
Speaker subwoofer, negative
14
Center speaker, negative
15,16
n/a
17
AUX IN left
18
AUX IN LR
19
AUX IN diag
20
n/a
21
Telephone in, diag
22
Telephone in, negative
23
AUX in, right
24
AUX in, shielding
25,26
n/a
27
Telephone in, shielding
28
Telephone in, positive
29
Headphones 1, diag.
30
n/a
31
Headphones 1 and 2, diag.
32,33
n/a
34
Headphones 2, diag.
35
Headphones 1, left
36
Headphones 1, left and right
37
Headphones 1, right
38
Headphones 2, left
39
Headphones 2, left and right
40
Headphones 2, right
41
Power Supply terminal 31
42
Power supply, terminal 30
Volkswagen (2011-2017) RCD220 Head Unit
Master connector reference · 36-pin ISO / mini-ISO LINE OUT OPTION CD 1 4 7 10 13 16 19 3 6 9 12 15 18 2 5 8 11 14 17 20 1 3 5 7 2 4 6 8 1 3 5 7 2 4 6 8 C B A
p/n 5KD035185, 5KD035181
ISO block A · numbered reference view
ISO block A · pin assignments
Pin
Function
2
Telephone mute
3
Ignition
4
Radio switch-on signal
6
Illumination (terminal 58)
7
Battery positive
8
Ground
ISO block B · numbered reference view
ISO block B · pin assignments
Pin
Function
1
Rear right +
2
Rear right −
3
Front right +
4
Front right −
5
Front left +
6
Front left −
7
Rear left +
8
Rear left −
ISO block C · numbered reference view
1 4 7 10 13 16 19
3 6 9 12 15 18
2 5 8 11 14 17 20
ISO block C · pin assignments
Pin
Function
7
Telephone audio +
12
Telephone audio −
Volkswagen (2015-2020) MIB STD Navigation Head Unit
Master connector reference · 52-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 18 D 1 2 3 4 5 6 7 8 9 10 11 12 B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 5C0035680F
52-pin Quadlock · block A · numbered reference view
1 5 9 13 17
2 6 10 14 18
3 7 11
4 8 12
52-pin Quadlock · block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
17
Ground
18
Battery positive
52-pin Quadlock · block B · numbered reference view
52-pin Quadlock · block B · pin assignments
Pin
Function
1
Telephone microphone
6
Reverse camera
7
Microphone shield
12
Camera shield
52-pin Quadlock · block C · numbered reference view
52-pin Quadlock · block C · pin assignments
Pin
Function
1
Audio input ground
2
Right audio input
3
USB +5 V
4
USB ground
7
Left audio input
8
Audio shield
52-pin Quadlock · block D · numbered reference view
52-pin Quadlock · block D · pin assignments
Pin
Function
6
Infotainment CAN high
12
Infotainment CAN low
4-pin external source socket · numbered reference view
4-pin external source socket · pin assignments
Pin
Function
1
Data 1+
2
Data 2−
3
Data 1−
4
Data 2+
Volkswagen (2015-2020) WG8 Sensor-Screen Bluetooth Head Unit
Master connector reference · 52-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 18 D 1 2 3 4 5 6 7 8 9 10 11 12 B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1k8035150d (model L56VW2)
52-pin Quadlock · block A · numbered reference view
1 5 9 13 17
2 6 10 14 18
3 7 11
4 8 12
52-pin Quadlock · block A · pin assignments
Pin
Function
1
Speaker (+), rear right
1
Telephone microphone
1
NF-In, earth (low frequency)
2
Speaker (+), front right
2
NF-In, right (low frequency)
3
Speaker (+), front left
3
USB, +5 V
4
Speaker (+), rear left
4
USB, earth
5
Speaker (-), rear right
6
Speaker (-), front right
6
Reversing camera
7
Speaker (-), front left
7
Telephone microphone (shield)
7
NF-In, left (low frequency)
8
Speaker (-), rear left
8
NF-In, shielding earth (low frequency)
12
Reversing camera (shield)
17
Terminal 31
18
Terminal 30
52-pin Quadlock · block D · numbered reference view
52-pin Quadlock · block D · pin assignments
Pin
Function
6
Infotainment CAN bus, high
12
Infotainment CAN bus, low
52-pin Quadlock · block C · numbered reference view
52-pin Quadlock · block C · pin assignments
Pin
Function
1
Data (1+)
2
Data (2-)
3
Data (1-)
4
Data (2+)
Volkswagen E-Golf (2014-2016) Discover Pro Head Unit
Master connector reference · 52-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 18 D 1 2 3 4 5 6 7 8 9 10 11 12 B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
Not Tested!
The source marks this configuration untested. Verify against the vehicle wiring diagram.
52-pin Quadlock · block A · numbered reference view
1 5 9 13 17
2 6 10 14 18
3 7 11
4 8 12
52-pin Quadlock · block A · pin assignments
Pin
Function
1
Rear right treble Speaker +
2
Front right treble Speaker +
3
Front left treble Speaker +
4
Rear left treble Speaker +
5
Rear right treble Speaker -
6
Front right treble Speaker -
7
Front left treble Speaker -
8
Rear left treble Speaker -
17
Terminal 31
18
Terminal 30
52-pin Quadlock · block B · numbered reference view
52-pin Quadlock · block B · pin assignments
Pin
Function
1
Telephone microphone
6
Reversing camera
7
Telephone microphone , screening connection
12
Reversing camera
52-pin Quadlock · block C · numbered reference view
52-pin Quadlock · block C · pin assignments
Pin
Function
1,2,3,7,8
Interface for external multimedia unit or Connection for external audio sources
3
Interface for external multimedia unit or Connection for external audio sources or USB Hub
5,6,9,10,11,12
Interface for external multimedia unit
52-pin Quadlock · block D · numbered reference view
52-pin Quadlock · block D · pin assignments
Pin
Function
1
Connection 1 (infotainment CAN bus, high) in main wiring harness
2
Display unit for front information display and operating unit control unit
5
Terminal 30
6
Connection (infotainment CAN bus, high), in dash panel wiring harness
7
Connection 1 (infotainment CAN bus, low) in main wiring harness
8
Display unit for front information display and operating unit control unit
12
Connection (infotainment CAN bus, low), in dash panel wiring harness
Volkswagen RCD 030+ Head Unit
Master connector reference · 36-pin ISO / mini-ISO LINE OUT OPTION CD 1 4 7 10 13 16 19 3 6 9 12 15 18 2 5 8 11 14 17 20 1 3 5 7 2 4 6 8 1 3 5 7 2 4 6 8 C B A
ISO block A · numbered reference view
ISO block A · pin assignments
Pin
Function
2
Telephone mute
4
Radio switch-on signal
6
Illumination (terminal 58)
7
Battery positive
8
Ground
ISO block B · numbered reference view
ISO block B · pin assignments
Pin
Function
1
Rear right +
2
Rear right −
3
Front right +
4
Front right −
5
Front left +
6
Front left −
7
Rear left +
8
Rear left −
ISO block C · numbered reference view
1 4 7 10 13 16 19
3 6 9 12 15 18
2 5 8 11 14 17 20
ISO block C · pin assignments
Pin
Function
1
Right audio input
2
Left audio input
3
Audio ground
7
Telephone audio +
12
Telephone audio −
4-pin USB socket · numbered reference view
4-pin USB socket · pin assignments
Pin
Function
1
Ground
2
USB D−
3
USB +5 V
4
USB D+
Volkswagen RCD 300+ Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1K0035186C
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
12
Ground (terminal 31)
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX left
2
AUX ground
3
CD audio ground
4
CD supply
7
AUX right
8
CD left
9
CD right
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
5
Telephone left −
6
Telephone right −
10
Telephone mute
11
Telephone left +
12
Telephone right +
4-pin USB socket · numbered reference view
4-pin USB socket · pin assignments
Pin
Function
1
Ground
2
USB D−
3
USB +5 V
4
USB D+
Volkswagen RCD 510 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 3C8035195
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
12
Ground (terminal 31)
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX left
2
AUX ground
3
CD audio ground
4
CD supply
6
CD data out
7
AUX right
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
5
Telephone left −
6
Telephone right −
10
Telephone mute
11
Telephone left +
12
Telephone right +
Volkswagen RCD 510+ USB Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
12
Ground (terminal 31)
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX left
2
AUX ground
3
CD audio ground
4
CD supply
6
CD data out
7
AUX right
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
2
Audio output right
3
Audio output ground
5
Telephone left −
6
Telephone right −
8
Audio output left
10
Telephone mute
11
Telephone left +
12
Telephone right +
26-pin video socket · numbered reference view
13 12 11 10 9 8 7 6 5 4 3 2 1
26 25 24 23 22 21 20 19 18 17 16 15 14
26-pin video socket · pin assignments
Pin
Function
4
Shield ground
5
Right audio output
6
Video output ground
7
Video output sync
8
Green video output
9
Shield ground
10
Right audio input
11
Video input ground
12
Video input sync
13
Green video input
17
Audio output ground
18
Left audio output
19
RGBS output return
20
Blue video output
21
Red video output
22
Audio input return
23
Left audio input
24
RGBS input return
25
Blue video input
26
Red video input
4-pin USB socket · numbered reference view
4-pin USB socket · pin assignments
Pin
Function
1
Ground
2
USB D−
3
USB +5 V
4
USB D+
Volkswagen RNS 300 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 1K0035191D, 1K0035191H, 1K0035191HX
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
11
Telephone mute
12
Ground (terminal 31)
13
Ignition key contact
14
Alarm signal, where fitted
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
2
CD audio common
4
CD supply
6
CD data out
7
AUX right
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
6
Telephone audio −
12
Telephone audio +
Volkswagen RNS 310 Radio Navigation Stereo
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 The RNS 310 label and radio photos do not establish a complete numbered pinout for this unit.
Volkswagen RNS 510 Head Unit
Master connector reference · 40-pin Quadlock A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUSE B C 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
p/n 7L6035680B
Quadlock block A · numbered reference view
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
Quadlock block A · pin assignments
Pin
Function
1
Rear right +
2
Front right +
3
Front left +
4
Rear left +
5
Rear right −
6
Front right −
7
Front left −
8
Rear left −
9
CAN high
10
CAN low
12
Ground (terminal 31)
15
Battery positive (terminal 30)
16
SAFE
Quadlock block B · numbered reference view
Quadlock block B · pin assignments
Pin
Function
1
AUX left
2
AUX ground
3
CD audio ground
4
CD supply
6
CD data out
7
AUX right
8
CD left
9
CD right
10
CD control
11
CD data in
12
CD clock
Quadlock block C · numbered reference view
Quadlock block C · pin assignments
Pin
Function
1
Microphone input −
4
Microphone output −
5
Telephone left −
6
Telephone right −
7
Microphone input +
9
Microphone output +
10
Telephone mute
11
Telephone left +
12
Telephone right +
26-pin video socket · numbered reference view
13 12 11 10 9 8 7 6 5 4 3 2 1
26 25 24 23 22 21 20 19 18 17 16 15 14
26-pin video socket · pin assignments
Pin
Function
4
Shield ground
5
Right audio output
6
Video output ground
7
Video output sync
8
Green video output
9
Shield ground
10
Right audio input
11
Video input ground
12
Video input sync
13
Green video input
17
Audio output ground
18
Left audio output
19
RGBS output return
20
Blue video output
21
Red video output
22
Audio input return
23
Left audio input
24
RGBS input return
25
Blue video input
26
Red video input
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