Hello -
My Saab has a bad problem of blowing lights regularly. In the past 6 months the headlights/high beams have blown 5 times, the brake lights twice, tag lights and 1 side marker. I bought it used and the previous owner has an equalizer installed but I do not use it. Also when had the radio installed, it works off a switch that runs to the cigarette lighter. If I turn the car off, I then have to flip the switch in order for the radio to turn off or my battery will die. I see where he had wires run from the battery to feed this. I'm not saying it's the cause but could it be? What other things can I check? Voltage regulator? Alternator? How?
Thanks for your time.