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46 (8+8+10+20) pin ISO 10487 Head Unit / Car Stereo connector layout
46 (8+8+10+20) pin ISO 10487 Head Unit / Car Stereo connector

Abbreviations of head unit pinout

Pin
Notation
Pin function

Power pins

B+, BAT, Bup+, B/Up, B-U, MEM +12 Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
A+, ACC, S-K, S-kont, SWA Ignition powered. +12 V with the ignition key is in the ACC or ON position.
ILL, LAMP, Lume, iLLUM Backlight illumination
ANT+, P.ANT Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) 
MUTE, Mut, mu, TEL, TEL MUTE This pin is used to silence the audio, earthed by some other external components that is connected to the radio.
GALA,GAL This pin is used in some radio equipment to automatically boost up the volume. It needs the output from the speed sensor.

Audio pins

R Right audio out
L Left Audio out
FR+, RF+ Front right audio out
FL+,LF+ Front left audio out
RR+ Rear right audio out
LR+, RL+ Rear left audio out
FR-, RF-, FL-, LF-, RR-, LR-, RL- The corresponding audio ground
GROUND SP Speakers ground
LINE OUT Audio line out
LINE IN Audio line in

Misc. pins

Amp Amplifier control
ACP, ACP+ Ford ACP bus
DATA IN, DATA OUT Head unit communication
CAN-L, CAN-H CAN bus
K-BUS K-line bus
SW+B Battery power switch
SDA, SCL, MRQ Head unit communication
BRAKE hand brake
CD-IN L+, CD-IN L-, CD-IN R+, CD-IN R- CD-changer audio

 

According to 1 reports in our database (1 positive and 0 negative) the Audi Chorus (Grundig) pinout should be correct.

Is this pinout
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