Yes, fuse box has no 'ground' (earth) -- it is all HOT stuff.

TIP: In general car wiring, WHITE or RED is usually a HOT wire. Black is usually ground.

Where is Dr. Funk when we need him? He's a sparky, isn't he?


LeDevil, glad to hear you found part of the problem. The 30A fuses will allow too much current to flow, melting the box instead of blowing at 10, 15 or 20A as designed.

Your next step is to find out why so much current is flowing.
* YES: check the voltage output at fast idle. If it's over 15V, that is a huge problem.
* If you have a 30A ammeter, you can test which lines have too much current through them. Nothing except headlights should draw more than 10A (I think).
* The traditional method to find the heavy current draw is to disconnect everything on the circuit, and put them back one at a time.

For example: For fuse "Horn/Stop/Hazard", disconnect the wires at the Horn, the Stop lights (in trunk). If it no longer get hot, plug one back in. Hot yet? Plug the next in. Hot yet? This way you can pin down where the problem is (or is not).