Pinouts >  Nissan, Infinity OEM Head units
20 pin Nissan Head Unit Audio main connector layout
20 pin Nissan Head Unit Audio main connector
p/n 25915-JA00A, 25915-JA00B 25915-JA000, model NA6W-3601US

20 pin Nissan Head Unit Audio main

Pin
Number
C Signal
1 G/R Parking brake signal (+12V when brake is ON)
2 G sound signal front LH (+) Out
3 R sound signal front LH (-) Out
4   shield
5 GR/V sound signal rear LH (+) Out
6 W/L sound signal rear LH (-) Out
7 V/Y ACC power supply
8 V/W Vehicle speed (8-pulse) signal
9 R/L Illumination signal
10 G Ignition signal IN
11 B sound signal front RH (+) Out
12 W sound signal front RH (-) Out
13   shield
14 V sound signal rear RH (+) Out
15 LG sound signal rear RH (-) Out
16 B/P Amp ON signal
17 P/B Reverse signal
18 R/Y Illumination control
19 B Ground
20 Y/R Battery power supply

C stands for Wire Color. It is for Altima 2008 and dependent on model and model year.

40 pin Nissan Head Unit Video

Pin
Number
C Signal
24 L CAN-H
25 W/G

Steering switch signal 1

Keep pressing SOURCE switch. 0V
Keep pressing MENU UP switch. 1V
Keep pressing MENU DOWN switch. 2V
Keep pressing switch TALK 3V
Keep pressing ENTER switch. 4V
Except for above. 5V

26 L/B Steering switch signal ground
27 GR/L

Steering switch signal 2

Keep pressing VOL DOWN switch. 0V
Keep pressing VOL UP switch. 1V
Keep pressing PHONE switch. 2V
Keep pressing BACK switch. 3V
Except for above. 5V

28   shield
31 W/R AUX sound signal RH
32   shield
33 W/L AUX sound signal LH
34 W Camera image signal
35   shield
44 P CAN-L
45 B/R Microphone signal
46 R/L Microphone VCC (+5V out)
47 R/B Microphone ground
48   shield
53 V/G Camera connection recognition signal input (0V - camera connected, +5V - camera not connected)
55 R Camera image signal

12 pin Nissan NDS CD Changer

Pin
Num
W/C Signal
61 W/L
Satellite radio audio signal LH -
 
62 Y/L
Satellite radio audio signal LH +
 
63 BR/L
Satellite radio audio signal RH -
 
64 Y/G
Satellite radio audio signal RH +
 
65   Ground
66   Data Ground
69 B Communication (CD→CONT)
70 G Communication (CONT→CD)
72 R Request signal (CD→CONT)
40 pin Nissan Head Unit Video connector layout
40 pin Nissan Head Unit Video connector
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12 pin Nissan NDS CD Changer connector layout
12 pin Nissan NDS CD Changer connector
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