put a kenwood head unit in my 90 raddo and it goes into protect mode after a while when switched to usb or cd source but not radio. my left front speakers dont work (dash and door) is the original wiring the problem (the connection between the factory harness and unit are good) or is it the non working speakers? is there a way to test the speakers, resistance maybe? anyone ever re run stereo wires in a raddo, i mean all of them? im also interested in pulling the whole stock sytem wiring amp and all and re working it all aftermarket. anyone know of writeup or have any pointers for re running the wiring and setting up with an amp?