Radio system - 2000 toyota avalon xls


#1

With the radio on; turning-on the headlights, causes the radio to let-out a teriffic noise, then go off. the radio is dead as long as the head loghts are off.

Turning-off the head lights and turning-on the radio, the radio works, but has lost all of it’s presets. It acts as though the power was removed from the radio, much the same as a bettery cable disconnect.

Does anyone know where the “Power Amplifier” is located (connector?)?

No fuses are blown, battery cables are ok, and clean.


#2

This is one of those hard to find things. I would start by making sure the dashboard has a good ground. Often it has a separate wire just for that. I am not suggesting that the ground IS the problem, only that it could be and it is easy, or at least cheap to check.