[algoesfast]

I don't believe so. But I think if they screwed with wiring you could have a fairly large problem. Finding the source were something burned out won't be easy. That's why electric shops charge 50 bucks an hour even if they don't find the problem. But I would bet you don't have power at the head unit or the door chimes. Good luck sounds like you have got a mess on your hands. Let us know if it turns out to be something small. I would love to know whats wrong.