i know little to nothing about car stereos. my stereo now goes on and off and time it moves or vibrates. the station and volume stays the same. i have an old pioneer stereo. can i figure out which wire it is without taking the whole thing apart? does anyone know which wire it that would cause this or is it a different one for each car/stereo combo?
i have a 92 firebird.
thanks in advance.

 

could it be the on\off switch

 

if the car is in park and the stereo is staying on, i can change from am to fm to tape and off..