Factory Mazda radio, navigation and Bose amplifier connector drawings and pin assignments. Match the radio or amplifier part number and the connector keying before identifying a pin. Connector views follow the orientation shown for each socket.
MX-5 Miata, MPV, Protegé, RX-8 and Mazda6 (2003–2005) 24-pin radio harness · variant comparison
B E G I K M O Q R T W H J L N P A C D F S U V X
Pin
Function
A
Left Front +
B
Battery (+12V)
C
Left Front -
D
Right Front +
E
Pulsed Dimmer (TNS+)
F
Right Front -
G
Inverted Dimming
H
2003 MX-5 · PWR Ant / 2003 MX-5 Bose · PWR Ant / 2004 MX-5 · PWR Ant / 2004 MX-5 Bose · PWR Ant / 2003 MPV · N/C / 2003 Protegé · N/C / 2004 RX-8 · PWR Ant / Mazda6 non-Bose · N/C / Mazda6 Bose · N/C
I
2003 MX-5 · N/C / 2003 MX-5 Bose · Speed Pulse / 2004 MX-5 · N/C / 2004 MX-5 Bose · Speed Pulse / 2003 MPV · N/C / 2003 Protegé · N/C / 2004 RX-8 · Speed Pulse / Mazda6 non-Bose · Speed Pulse / Mazda6 Bose · Speed Pulse
J
2003 MX-5 · N/C / 2003 MX-5 Bose · Amp Remote / 2004 MX-5 · N/C / 2004 MX-5 Bose · Amp Remote / 2003 MPV · Amp Remote / 2003 Protegé · Amp Remote / 2004 RX-8 · Amp Remote / Mazda6 non-Bose · N/C / Mazda6 Bose · Amp Remote
K
2003 MX-5 · N/C / 2003 MX-5 Bose · N/C / 2004 MX-5 · N/C / 2004 MX-5 Bose · N/C / 2003 MPV · N/C / 2003 Protegé · N/C / 2004 RX-8 · Nav: Parking Brake / Mazda6 non-Bose · N/C / Mazda6 Bose · N/C
L
2003 MX-5 · N/C / 2003 MX-5 Bose · N/C / 2004 MX-5 · N/C / 2004 MX-5 Bose · N/C / 2003 MPV · N/C / 2003 Protegé · N/C / 2004 RX-8 · N/C / Mazda6 non-Bose · N/C / Mazda6 Bose · N/C
M
2003 MX-5 · N/C / 2003 MX-5 Bose · N/C / 2004 MX-5 · N/C / 2004 MX-5 Bose · N/C / 2003 MPV · N/C / 2003 Protegé · N/C / 2004 RX-8 · Nav: Reverse / Mazda6 non-Bose · N/C / Mazda6 Bose · N/C
N
Clockspring/ Wheel Controls
O
blank
P
Clockspring/ Wheel Controls
Q
blank
R
IGN (+12V switched)
S
2003 MX-5 · Left Rear + / 2003 MX-5 Bose · N/C / 2004 MX-5 · Left Windblocker + / 2004 MX-5 Bose · Left Windblocker + / 2003 MPV · Left Rear + / 2003 Protegé · Left Rear + / 2004 RX-8 · Left Rear + / Mazda6 non-Bose · Left Rear + / Mazda6 Bose · Left Rear +
T
blank
U
2003 MX-5 · Left Rear - / 2003 MX-5 Bose · N/C / 2004 MX-5 · Left Windblocker - / 2004 MX-5 Bose · Left Windblocker - / 2003 MPV · Left Rear - / 2003 Protegé · Left Rear - / 2004 RX-8 · Left Rear - / Mazda6 non-Bose · Left Rear - / Mazda6 Bose · Left Rear -
V
2003 MX-5 · Right Rear + / 2003 MX-5 Bose · N/C / 2004 MX-5 · Right Windblocker + / 2004 MX-5 Bose · Right Windblocker + / 2003 MPV · Right Rear + / 2003 Protegé · Right Rear + / 2004 RX-8 · Right Rear + / Mazda6 non-Bose · Right Rear + / Mazda6 Bose · Right Rear +
W
Ground
X
2003 MX-5 · Right Rear - / 2003 MX-5 Bose · N/C / 2004 MX-5 · Right Windblocker - / 2004 MX-5 Bose · Right Windblocker - / 2003 MPV · Right Rear - / 2003 Protegé · Right Rear - / 2004 RX-8 · Right Rear - / Mazda6 non-Bose · Right Rear - / Mazda6 Bose · Right Rear -
Mazda3 (2003–2008) / Mazda5 (2005–2008) · numbered harness 24-pin main connector
1 2 3 4 5 6 7 8 9 10 11 12 13 22 14 15 16 17 18 19 20 21 23 24
Pin
Function
1
Front left + · White/black
2
Front left − · Gray/black
3
Front right + · White/red
4
Front right − · Gray/red
5
Rear left + · White/violet
6
Rear left − · Gray/white
7
Rear right + · White
8
Rear right − · Gray
12
Steering control · White/black
13
Steering control · Brown/yellow
14
Dimmer · Orange/black
15
Illumination · Black/green
19
Data · Gray/red
20
Data · Blue/red
21
ACC
22
Battery +12 V · Orange/black
24
Ground · Black/green
Mazda3 (2011) · non-Bose radio 24-pin audio and vehicle harness
1X 1V 1U 1S 1F 1D 1C 1A 1P 1N 1L 1J 1H 1W 1T 1R 1Q 1O 1M 1K 1I 1G 1E 1B
Pin
Function
1A
Front left +
1C
Front left −
1D
Front right +
1F
Front right −
1S
Rear left +
1U
Rear left −
1V
Rear right +
1X
Rear right −
1W
Ground
1N
Steering switch · Red
1P
Steering switch · Violet
Mazda3 · Bose amplifier Connector overview
24-pin audio socket A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 8-pin power and speaker socket E F G H D C B A
24-pin audio socket
A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1
Pin
Function
A5
Rear left +
A6
Rear left −
A7
Rear right +
A8
Rear right −
A9
Front left +
A10
Front left −
A11
Front right +
A12
Front right −
B3
Rear right input −
B4
Rear right input +
B5
Rear left input −
B6
Rear left input +
B7
Front right input −
B8
Front right input +
B9
Front left input −
B10
Front left input +
B11
Switched battery supply
8-pin power and speaker socket
E F G H D C B A
Pin
Function
A
Ground
B
Speaker 5 +
C
Speaker 6 +
D
NC
E
NC
F
Speaker 6 −
G
Speaker 5 −
H
Battery +12 V
Mazda3 · Mazda Connect display, tuner and CD module Connector overview
CMU connector 1 · 28-pin 1AA 1Y 1W 1U 1S 1Q 1O 1M 1K 1I 1G 1E 1C 1A 1AB 1Z 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B CMU connector 2 · power and data 2S 2Q 2O 2M 2K 2I 2G 2E 2C 2A 2T 2R 2P 2L 2J 2F 2D 2B Tuner connector 1 · audio inputs 1W 1U 1S 1Q 1O 1M 1K 1I 1G 1E 1C 1A 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B Tuner connector 2 · audio and power 2X 2V 2U 2S 2F 2D 2C 2A 2P 2N 2L 2J 2H 2W 2T 2R 2Q 2O 2M 2K 2I 2G 2E 2B CD module · audio, video and power 1Y 1W 1U 1S 1G 1C 1A 1Z 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B
CMU connector 1 · 28-pin
1AA 1Y 1W 1U 1S 1Q 1O 1M 1K 1I 1G 1E 1C 1A 1AB 1Z 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B
Pin
Function
1A
Camera video
1B
Camera video ground
1C
Camera supply
1D
Camera supply ground
1G
DVD video
1H
DVD video ground
1K
iPod video
1L
iPod video ground
1M
Steering switch 1
1N
Steering switch 2
1O
Steering switch 3
1P
Mic detect
1Q
Mic supply
1R
Mic supply ground
1S
Mic +
1T
Mic −
1V
Shield
1X
Shield
1Y
CMU left +
1Z
CMU left −
1AA
CMU right +
1AB
CMU right −
CMU connector 2 · power and data
2S 2Q 2O 2M 2K 2I 2G 2E 2C 2A 2T 2R 2P 2L 2J 2F 2D 2B
Pin
Function
2C
Ground
2D
Ground
2E
HS CAN +
2F
HS CAN −
2I
Local HS CAN +
2J
Local HS CAN −
2K
LIN
2L
Ground
2O
RS485 +
2P
RS485 −
2Q
ACC
2R
Battery +12 V
Tuner connector 1 · audio inputs
1W 1U 1S 1Q 1O 1M 1K 1I 1G 1E 1C 1A 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B
Pin
Function
1I
Aux left +
1J
Aux common −
1K
Aux right +
1L
Aux detect
1M
CD left +
1N
CD left −
1O
CD right +
1P
CD right −
1Q
CMU left +
1R
CMU left −
1S
CMU right +
1T
CMU right −
1W
HD image +
1X
HD image −
Tuner connector 2 · audio and power
2X 2V 2U 2S 2F 2D 2C 2A 2P 2N 2L 2J 2H 2W 2T 2R 2Q 2O 2M 2K 2I 2G 2E 2B
Pin
Function
2A
Front left +
2C
Front left −
2B
Battery +12 V
2D
Front right +
2F
Front right −
2I
Speed pulse
2J
Amplifier enable
2O
Local HS CAN +
2Q
Local HS CAN −
2R
ACC
2S
Rear left +
2U
Rear left −
2T
AudioPilot
2V
Rear right +
2X
Rear right −
2W
Ground
CD module · audio, video and power
1Y 1W 1U 1S 1G 1C 1A 1Z 1X 1V 1T 1R 1P 1N 1L 1J 1H 1F 1D 1B
Pin
Function
1A
Ground
1D
Illumination −
1G
Local MS CAN +
1H
Local MS CAN −
1J
Shield
1L
CD left +
1N
CD left −
1P
CD right +
1R
CD right −
1T
Shield
1U
Video output
1V
Video ground
1W
TNS
1Y
ACC
1Z
Battery +12 V
Mazda5 (2006–2007) · Clarion CC45-66-ARX / PT-2674J Connector overview
J701 · 24-pin main N O P Q R S T U V W X E F G H I A B C D J K L M J702 · 16-pin auxiliary p o n m l k j i h g f e d c b a
J701 · 24-pin main
N O P Q R S T U V W X E F G H I A B C D J K L M
Pin
Function
A
Front left +
B
Front left −
C
Front right +
D
Front right −
E
Power antenna
F
Amplifier enable
G
Dim cancel
H
Steering switch 1
I
Steering switch 2
J
Rear left +
K
Rear left −
L
Rear right +
M
Rear right −
N
Battery +12 V
O
TNS +
P
Illumination −
Q
Speed pulse
R
UART 1
S
UART 2
T
CAN +
U
CAN −
V
ACC
W
AudioPilot
X
Power ground
J702 · 16-pin auxiliary
p o n m l k j i h g f e d c b a
Pin
Function
a
ACC
b
Auxiliary control
c
M-BUS −
d
Text clock
e
Signal ground
f
Left input +
g
Right input +
h
Power ground
i
Battery +12 V
j
Illumination −
k
M-BUS +
l
TNS +
m
Text data
n
Left input −
o
Right input −
p
System mute
Mazda6 (2001–2005) · Panasonic CR-LM4282KA Connector overview
CN701 · 24-pin main B E G I K M O Q R T W H J L N P A C D F S U V X CN702 · 16-pin auxiliary b d f h j l n p a c e g i k m o
CN701 · 24-pin main
B E G I K M O Q R T W H J L N P A C D F S U V X
Pin
Function
A
Front left +
B
Battery +12 V
C
Front left −
D
Front right +
E
TNS +
F
Front right −
G
Illumination −
H
Power antenna
I
Speed pulse
J
Amplifier enable
K
UART 1
L
Telephone mute
M
UART 2
N
Steering switch 1
O
CAN high
P
Steering switch 2
Q
CAN low
R
ACC
S
Rear left +
T
Signal ground
U
Rear left −
V
Rear right +
W
Power ground
X
Rear right −
CN702 · 16-pin auxiliary
b d f h j l n p a c e g i k m o
Pin
Function
a
Ground
b
System mute
c
Right input +
d
Right input −
e
Left input +
f
Left input −
g
Signal ground
h
NC
i
NC
j
NC
k
NC
l
NC
m
NC
n
NC
o
ACC
p
Battery +12 V
Mazda6 Bose (2007–2011) · Panasonic CQ-EM4770AT CN701 · 24-pin main
B E G I K M O Q R T W H J L N P A C D F S U V X
Pin
Function
A
Front left +
B
Battery +12 V
C
Front left −
D
Front right +
E
TNS +
F
Front right −
G
Illumination −
H
Power antenna
I
Speed pulse
J
Amplifier enable
K
UART 1
L
Telephone mute
M
UART 2
N
Steering switch 1
O
CAN high
P
Steering switch 2
Q
CAN low
R
ACC
S
Rear left +
T
Signal ground
U
Rear left −
V
Rear right +
W
Power ground
X
Rear right −
Mazda6 (2002–2007) · Panasonic CQ-EM4570AK Connector overview
CN701 · 24-pin main 2 5 7 9 11 13 15 17 18 20 23 8 10 12 14 16 1 3 4 6 19 21 22 24 CN702 · 16-pin auxiliary 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN703 · 15-pin module connector 2 4 6 8 10 12 14 1 3 5 7 9 11 13 15 CN905 · 6-pin climate connector 2 4 6 1 3 5 CN906 · 6-pin climate connector 2 4 6 1 3 5
CN701 · 24-pin main
2 5 7 9 11 13 15 17 18 20 23 8 10 12 14 16 1 3 4 6 19 21 22 24
Pin
Function
1
Front left +
2
Battery +12 V
3
Front left −
4
Front right +
5
TNS +
6
Front right −
7
Illumination −
8
Power antenna
9
Speed pulse
10
Amplifier enable
11
UART 1
12
Dim cancel
13
UART 2
14
Steering switch 1
15
CAN +
16
Steering switch 2
17
CAN −
18
ACC
19
Rear left +
20
NC
21
Rear left −
22
Rear right +
23
Power ground
24
Rear right −
CN702 · 16-pin auxiliary
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Pin
Function
1
ACC
2
Battery +12 V
3
RSES / AUX control
4
Illumination −
5
M-BUS −
6
M-BUS +
7
NC
8
TNS +
9
Signal ground
10
NC
11
Left input +
12
NC
13
Right input +
14
NC
15
Power ground
16
System mute
CN703 · 15-pin module connector
2 4 6 8 10 12 14 1 3 5 7 9 11 13 15
Pin
Function
1
Bus +
2
Bus −
3
Battery +12 V
4
Battery +12 V
5
Power ground
6
Power ground
7
TNS +
8
Illumination −
9
MD clock
10
MD data
11
ACC
12
System mute
13
Right input +
14
Signal ground
15
Left input +
CN905 · 6-pin climate connector
2 4 6 1 3 5
Pin
Function
1
M/C busy
2
A/C switch
3
Hazard
4
Switch ground
5
Hazard ground
6
Recirculate / fresh air
CN906 · 6-pin climate connector
2 4 6 1 3 5
Pin
Function
1
Hazard
2
IG2
3
Data in
4
Rear defrost switch
5
Ambient switch
6
Heater control clock
Mazda6 (2014–2018) · Bose amplifier, navigation system Connector overview
0920-515A · black · audio inputs 1O 1M 1K 1I 1G 1E 1C 1A 1P 1N 1L 1J 1H 1F 1D 1B 0920-515B · green · speaker outputs and data 2O 2M 2K 2I 2G 2E 2C 2A 2P 2N 2L 2J 2H 2F 2D 2B 0920-515C · black · power and door speakers 3G 3E 3C 3A 3H 3F 3D 3B
0920-515A · black · audio inputs
1O 1M 1K 1I 1G 1E 1C 1A 1P 1N 1L 1J 1H 1F 1D 1B
Pin
Function
1O
Front left audio +
1P
Front left audio −
1M
Front right audio +
1N
Front right audio −
1K
Rear left audio +
1L
Rear left audio −
1I
Rear right audio +
1J
Rear right audio −
1G
AudioPilot mic B
1H
AudioPilot mic A
0920-515B · green · speaker outputs and data
2O 2M 2K 2I 2G 2E 2C 2A 2P 2N 2L 2J 2H 2F 2D 2B
Pin
Function
2O
Rear left and right Twiddler +
2P
Rear left and right Twiddler −
2M
Front right tweeter and Twiddler +
2K
Front right tweeter and Twiddler −
2I
Front centre Twiddler −
2G
Front centre Twiddler +
2E
Front left tweeter and Twiddler +
2C
Front left tweeter and Twiddler −
2A
Rear right door coaxial +
2B
Rear right door coaxial −
2N
High-speed CAN low
2L
High-speed CAN high
2J
Chassis ground
2H
Head unit TX / amplifier RX
2F
Head unit RX / amplifier TX
2D
ACC relay / turn-on
0920-515C · black · power and door speakers
3G 3E 3C 3A 3H 3F 3D 3B
Pin
Function
3G
Rear left door coaxial −
3H
Rear left door coaxial +
3E
Front right door woofer +
3F
Front right door woofer −
3C
Front left door woofer +
3D
Front left door woofer −
3A
Battery +12 V · 25 A Bose fuse
3B
Chassis ground
Mazda navigation · CN12 / CN705 Connector overview
CN705 · 24-pin video and vehicle signals 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN12 · 6-pin remote connection 1 2 3 4 5 6
CN705 · 24-pin video and vehicle signals
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Pin
Function
1
Blue video
2
Green video
3
Composite sync
4
Red video
5
Video ground
6
Video ground
7
Shield ground
8
Composite video input
9
Serial output
10
Shield ground
11
Shield input
12
TV bus −
13
Rear camera
14
TV bus +
15
ACC
16
Power ground
17
Battery +12 V
18
Parking brake
19
Shield ground
20
Reverse / RSES detect
21
UART 2
22
TNS +
23
UART 1
24
Illumination −
CN12 · 6-pin remote connection
1 2 3 4 5 6
Pin
Function
1
ACC +12 V
2
Power ground
3
TNS +
4
Remote control
5
Remote data
6
Shield ground
Mazda3 / Mazda6 (2012–2017) · existing 24-pin reference
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