Lecher, If you've been here a while, I like to help with problems, and electrical stuff was my specialty when I worked as a car mechanic. I know what you face there; it can be a nightmare. I advise that you do not let this happen to you. When one wire shorts and burns, it can take out everything near it. *If* this car is worth repairing to you, consider this: The dealer or aftermarket sources can probably get a partial wiring harness for that GTA. Order by VIN number, if possible. The seller can probably show you where all of that wiring goes, so you can decide if you really want to do this. Some cars split the engine harness from the rest of the car, and some even split the engine harness into pieces. The "part" that you need might be reasonable in cost, but you might get dirty on this job... Sounds like you knew the fuse box section was bad, so you would need that part, new, at least. Lay the new harness on top of the old one. Start at the large part of the bundle, follow it along the old routing, and attach each connector, as you come to it. Use harness ties (Ty-Wraps or similar) to tie the new wire bundle to the old one temporarily. Never use metal wires (like twisty-ties) to secure electrical wiring in place. You should find all of the burned wiring, and the longest wire that is completely burned (end-to-end) was probably connected to the source of this mess. Replace that part, and be sure - if it was a starter, for example, have the replacement starter bench-tested by the parts store, before you put it in. The bad part that ruined your old wiring will gladly ruin the new wiring, too. Leave all of the old wiring in place, until you have all of the old wiring unplugged, and all of the new wires connected. *Tie* back any loose ends, to prevent trouble. Get the car working 100% again; accept no compromises
- they *will* bite you. Then and only then, take a bunch of harness ties and wire cutters; cut all of the old harness ties, one by one, and tie the new harness into place as you go. Remove the old wiring, and take a bow! Your car-nut friends will think you're a wizard! :-)