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36 (20+8+8) pin Head Unit / Car Stereo ISO connector layout
36 (20+8+8) pin Head Unit / Car Stereo ISO connector
p/n 1J0 035 180 B
The pinout should fit 3 device(s)/model(s). Click to list>

Meaning of Head Unit pinout signals

Pin
Notation		 Pin function

Power pins
KL30 Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
KL31 Ignition powered. +12 V with the ignition key is in the ACC or ON position.

Audio pins
FR+ or RF+ Front right speaker out
FL+ or LF+ Front left speaker out
RR+ Rear right speaker out
LR+ or  RL+ Rear left speaker out
FR- or RF-, FL- or LF-, RR-, LR- or RL-, SGND The corresponding speaker ground

Misc. pins
Amp, ATX+, ATX- Amplifier control
DATA, CLK Head unit communication
Alm

anti-theft alarm system
SWC Steering wheel buttons control
CAN-L, CAN-H CAN on board diagnostic bus
Pinout status: +0 -0
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