Does anyone know if the factory head unit has an amp in it and uses the external amp as a "booster" or, is it non-powered? Also does anyone have the wiring schematics for these units?
I would like to install the head unit (and amp) in my wife's '99 Explorer and need to know the wiring and if I also need to install the amp. I pretty much have figured the wiring in my wife's car except for two black/green wires, one red/black wire, and one gray/black wire (on its own plug/connector.
Thanks
Henry