Abbreviations of head unit pinout
| Pin Notation | Pin function | 
|---|---|
| Power pins | |
| B+ | Battery+ (12V direct from Battery). | 
| GND | Chassis Ground | 
| ACC | Ignition powered. +12 V with the ignition key is in the ACC or ON position. | 
| AUTO ANT | Power for Electric Antenna. Output +12 V (maximum 150 - 300mA) | 



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