Head unit pinout abbreviations meaning
Pin Notation |
Pin function |
---|---|
Power pins |
|
Batt | Battery+ (12V direct from Battery). |
GND, GROUND | Chassis Ground |
SWA | Ignition powered. +12 V with the ignition key is in the ACC or ON position. |
LAMP | Backlight adjustment |
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 OUT, LINE-OUT LF, LINE-OUT RF, LIN, LIN-R, LIN-L | Audio line out |
Misc. pins |
|
TEL MUTE | This pin is used to silence the audio, earthed by some other external components that is connected to the radio. |
GALA | This pin is used in some radio equipment to automatically boost up the volume. It needs the output from the speed sensor. |
CAN-L, CAN-H | CAN on board diagnostic bus |
CD-IN L+, CD-IN L-, CD-IN R+, CD-IN R- | CD-changer audio |