So I had an aftermarket 12 disc changer in the trunk. I was removing it and taking out the wires in the head unit area and the antenna wire hit an exposed where that was hooked up to the cd changer. When I put the head unit back in I got nothing, can't turn the radio on, nothing. So I changed the fuse which made everything work that had gone out, lights, odometer what not, but the radio still does not work or turn on...so I'm thinking that it is either an amp or something. I also tried to put another Ford radio in to see if it was actually the radio but that didn't work either. So if anyone could direct me in the right direction I would appreciate it. Thanks