Head unit pinout abbreviations
| Pin Notation  | 
			Pin function | 
|---|---|
			Power pins | 
		|
| +B | Battery+ (12V direct from Battery). | 
| GND, GROUND | Chassis Ground | 
			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-, SGND | The corresponding speaker ground | 


