Abbreviations of head unit pinouts
| Pin Notation | Pin function | 
|---|---|
| Power pins | |
| GND, GROUND | Chassis Ground | 
| ACC | Ignition powered. +12 V with the ignition key is in the ACC or ON position. | 
| LAMP | Backlight illumination | 
| 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 | 
| FL+ | 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 | 




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