Pinouts >  Aftermarket automotive Head units and Car Stereo  >  Grundig pinouts
16 (8+8) pin Car Stereo ISO  connector layout
16 (8+8) pin Car Stereo ISO  connector

Head unit pinout abbreviations

Pin
Notation
Pin function

Power pins

KL.30 Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
KL.15 Ignition powered. +12 V with the ignition key is in the ACC or ON position.
lightbulb image Backlight adjustment
ANT+, P.ANT, ANT Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) 
__/ +--- Switched power out

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- The corresponding speaker ground
LINE Audio line out

Misc. pins

MUTE This pin is used to silence the audio, earthed by some other external components that is connected to the radio.
SCV This pin is used in some radio equipment to automatically boost up the volume. It needs the output from the speed sensor.
CD CD-changer audio
DAB Digital Audio Broadcasting

 

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