My daughter is having trouble with her car. She said the headlight harnesses need replaced. Something made the wires melt, and she has no lights, so can't drive after dark. What exactly is a headlight harness, and does it really cost $400 to fix this? They told her it would be a temporary fix, that something is shorting the electrical system, and that six months later, something else would be going wrong with it. So that means, to her at least, and $8000 fix for the electrical. So, how realistic are these numbers? Because she does have a tendency to exaggerate some.