I actually ahve two issues. first being the mystery relay. one day i started the car and suddenly couldnt use the locks or radio. if you turn the radio on and turn it up you can here the speakers buzzing a little. i checked all the fuses and none are blown. second is that when i start the car i turn the key to acc and all the lights come on. then i start the car and all the lights but one turn off. the coolant lights stays on for just a few seconds after i start the car. the coolant is full. does it mean anything? please help thanks.
what relay is connected to the radio, power locks, and 12v socket? on 1990 Oldsmobile Cutlass Ciera