buy mine 4 parts starts fine lol

 

Does it have an external voltage regulator? If so check connections there and be sure it has a good ground. HTH

 

I'd check the fusible links, they run off your starter soleniod on the fenderwell, grab each one and try to wiggle them back and forth if they move and are burnt and crunchy, replace them. I had a bad one, one time, would move the wires around, it would make contact, then break the connection as soon as I tried to start the car. If you find a bad one, you can get them at any parts store, pretty common for going bad. Good Luck!!!

 

I think your on to something

now...how the fuk does my passenger power windows make power come back on to the lights..stereo etc?

 

Different fusible links for different circiuts.