electrical can be a difficult thing to diagnose, I would give your post some more time and maybe someone who is really electrical/wiring savvy will give u some advice, but I can tell u, I would just start doing visual checks on all the wiring in the car, including getting your alt., starter, ignition switch tested and all fuses and relays checked out, using trial and error, sorry if this doesn't help at all but at least I tryed.