I'm new at this. I have several issues with my 88 AT Turbo that could be one big issue. The only exterior lights that work are my headlights. No tail, brake, side, etc. On the interior, my gauge cluster lighting, the dome light, and the passenger door light do not function. My drivers door light and cargo light do function. The other issue is all gauges function well except my tach. It does not function at all, but the two small bottom lights on the tach work. Common problems? Easy fix?? Any help would be apreciated!! Thanks!!