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20 pin Nissan Head Unit Audio main connector layout
20 pin Nissan Head Unit Audio main connector
p/n 28185-3VY0A

Pin
Num
W/C Signal
2 GR
Sound signal front speaker LH (+)
 
3 P
Sound signal front speaker LH (-)
 
4 W
Sound signal rear speaker LH (+)
 
5 R
Sound signal rear speaker LH (-)
 
6 BR
STRG SW A

Press SOURCE switch 0V
Press SEEK UP switch 1.0V
Press SEEK DOWN switch 2.0V
Press TALK switch 3.0V
Except above 5.0V
7 W
ACC power supply
 
8 B
Illumination control signal (-)
 
9 LF/R
Illumination control signal (+)
 
11 O
Sound signal front speaker RH (+)
 
12 V
Sound signal front speaker RH (-)
 
13 L
Sound signal rear speaker RH (+)
 
14 Y
Sound signal rear speaker RH (-)
 
15 GR
STRG SW ground
 
16 V
STRG SW B
Press VOL DOWN switch 0V
Press VOL UP switch 1.0V
Press PHONE switch 2.0V
Except above 5.0V
18 LG
Vehicle speed signal
 
19 Y
Battery power supply
 
20  
GND
 

W/C stands for Wire Color. It is for Nissan Versa 2014 and is very dependent on model and model year.

Pin
Num
W/C Signal
22 B/W
EQ2 Ground
24 B
EQ4 Ground
 
27 SB
AV communication (H)
 
28 LG
AV communication (L)
 
29 P
TEL ON
 
30  
TEL voice signal shield
 
31 R
TEL voice signal (-)
 
32 G
TEL voice signal (+)
 

W/C stands for Wire Color. It is for Versa 2014 and is very dependent on model and model year.

 

16 pin Nissan Head Unit pre-amp connector layout
16 pin Nissan Head Unit pre-amp connector
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