God damn it! My car horn just started blaring for no reason. It shut off when the engine was started and the hood was opened, but I have no idea if either action had anything to do with it. And of course it's Sunday so calling the dealership yielded no information. I don't know when I'll get a chance to take it in in any event. April? At least it's shut up for now, but who knows when it will happen again? I'd simply cut it out of there if I knew where it was.