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14 pin Mitsubishi Head Unit proprietary connector layout
14 pin Mitsubishi Head Unit proprietary connector

Meaning of Head Unit pinout signals

Pin
Notation
Pin function

Power pins

B+ Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
ACC Ignition powered. +12 V with the ignition key is in the ACC or ON position.
Dimmer Light-on signal or backlight adjustment. +12V supplied to light-on pin of head unit when tail lights ar turned on. May be used for backlight adjustment in some models.
ANT+ Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) 

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

TEL This pin is used to silence the audio, earthed by some other external components that is connected to the radio.

 

10 pin unspecified connector layout
10 pin unspecified connector
According to 1 reports in our database (1 positive and 0 negative) this pinout should be correct.

Is this pinout
Volvo CT-503, SC-811 Head Units visual pinout:click to enlarge
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