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20 pin Nissan Head Unit Audio main connector layout
20 pin Nissan Head Unit Audio main connector

Pin
Number
Pin
Name
Description Direction Wire
Color
4 BT- Bluetooth voice signal Input B
5 BT+ Bluetooth voice signal   W
6 SHLD Shield    
10 GND Eject ground   V
11   CAN–H   Can High Input/Output L
12   CAN-L   Can Low Input/Output P
13   AVH  AV communication signal (H) Input/Output SB
14   AVL   AV communication signal (L) Input/Output LG
15   AVH   AV communication signal (H) Input/Output SB
16   AVL   AV communication signal (L) Input/Output LG
20   AUXR  AUX sound signal R Input W
21   AUXL   AUX sound signal L Input R
22   AUXG   AUX sound signal Ground   B
25   SHD  Shield    
28   CDE  CD (DVD) eject signal. 0V when 
pressing eject switch, 5V except above.
Input Y
29   IGN  Ignition signal, +12V Input LG
30   RVR  Reverse signal, +12V when Selector lever in R position, 0V otherwise Input R
31   PRK Parking brake signal. +12V  - Parking brake released, 0V - 
Parking brake applied
Input G
32   VS   Vehicle speed signal Input GR

Pin
Number
Pin
Name
Description Direction Wire
Color
34 FL+ front door speaker and instrument panel tweeter Audio Output SB
35 FL- front door speaker and instrument panel tweeter Audio Output V
36 RL+ rear door speaker Audio Output BR
37 RL- rear door speaker Audio Output Y
38 SWA+ Steering switch signal A
Press SOURCE switch 0V
Press Next Up switch 1.0V
Press Next Down switch 2.0V
Press Phone Loudspeaker  switch 3.0V
Press ENTER switch 4.0V
Except above 5.0V
Input G
39 Acc ACC power supply +12V Input P
41 Ill+ Illumination signal, 0V - Lighting switch OFF, +12V - 
Lighting switch ON
Input R
43 FR+ front door speaker and instrument panel tweeter Audio Output BR
44 FR- front door speaker and instrument panel tweeter Audio Output Y
45 RR+ rear door speaker Audio Output L
46 RR- rear door speaker Audio Output SB
47 SWG Steering switch signal Ground   B
48 SWB Steering switch signal B
Press Vol Down switch 0V
Press Vol Up switch 1.0V
Press Phone switch 2.0V
Press Back switch 3.0V
Press DISP switch 4.0V
Except above 5.0V
Input W
51 Bat+ Battery power supply Input Y
52 GND Ground   B

Pin
Number
Description Direction Wire
Color
53 Composite image signal. When 
camera image or AUX image displayed
Output B
54 Composite image signal ground Output W
55 RGB signal (B: blue) Output W
56 RGB signal (G: green) Output B
57 RGB signal (R: red) Output R
58 RGB synchronizing signal Output B
59 Shield (RGB SYN GND)    
60 RGB area (YS) signal Output W
61 Communication signal(DISP→CONT) (Adjusting display brightness)
Input
 
B
62 Horizontal synchronizing(HP) signal Input G
63 Signal ground   B
64 Signal VCC +9V    
66,67,72 Shield    
73 Communication signal(CONT→DISP (Adjusting display brightness) Output W
74 Vertical synchronizing (VP) signal Input R
75 Inverter ground   LG
76 Inverter VCC (+9V)   L

 

Pin
Number
Description Direction Wire
Color
82 Camera image signal Input B
83 AUX image signal Input W
87 Camera power supply (+6V when Selector lever in “R” position)   R
88 Camera ground   W
89,90 Shield    
91 AUX image signal ground   B

Pin
Number
Description Direction Wire
Color
93 Satellite radio sound signal
L-
Input when Satellite radio mode selected W
94 Satellite radio sound signal
L+
Input when Satellite radio mode selected B
95 Satellite radio sound signal
R-
Input when Satellite radio mode selected R
96 Satellite radio sound signal
R+
Input when Satellite radio mode selected G
97,98 Shield    
100 Request signal(SAT→CONT) Input W
101 Communication signal(SAT→CONT Input B
102 Communication signal(CONT→SAT Output R

Pin
Number
Description Direction Wire
Color
121 V BUS   W
122 USB Ground   G
123 USB D+   L
124 USB D-   R
125 Shield    

 

Pin
Number
Description Direction Wire
Color
126 Antenna amp. ON signal   B
127     B
128     B

 

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Nissan Pathfinder (2013-2015) Head Unit visual pinout:click to enlarge
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