Head unit pinout abbreviations meaning
| Pin Notation | Pin function | 
|---|---|
| Power pins | |
| BAT+ | Battery+ (12V direct from Battery). | 
| GND | Chassis Ground and Speakers Ground | 
| ACC+ | Ignition powered. +12 V with the ignition key is in the ACC or ON position. | 
| LAMP+ | Backlight adjustment | 
| A.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 | 



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