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+ | Ignition powered. +12 V with the ignition key is in the ACC or ON position. |
| ANT+, P.ANT | Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) |
| MUTE | This pin is used to silence the audio, earthed by some other external components that is connected to the radio. |
Audio pins |
|
| FR | Front right audio out |
| LF | Front left audio out |
| RR | Rear right audio out |
| LR | Rear left audio out |
| FR-, RF-, FL-, LF-, RR-, LR-, RL- | The corresponding audio ground |
| LINE OUT | Audio line out |
| IN-R, IN-L | Audio line in |
Misc. pins |
|
| Bus-IN, BUS-OUT, BUS-GND | Head unit communication |
| RC-IN, RC-GND, RC+12V | Remote control |
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