'85 SA/2: Radio voltage at 2.5 Volts when lights on
 

Hi,
everytime I switch on the headlights, the voltage of the Radio drops down to 2.5 V and the radio turns of. Where is the error, what can I do?
Thank you.

Re: '85 SA/2: Radio voltage at 2.5 Volts when lights on
 

I know this is an old post but for future readers I would check for corroded wires (usually the copper in the wire starts to turn green), and or you have a weak/loose ground.