was trying to put a head unit in my car, 1 wire came a apart so i tried to pull it out but it was stuck so i shook it around to try and get it loose but more wires came apart and touched something inside and then it sparked....it messed up my locks, blew the fuse of my lightbull and for my head unit..i only changed the blown fuse for my head unit but not for the light bulb yet, the head unit and the light bulb sit in the same port...only those 2 alone...wondering if both fuses have to be good for the head unit to work since they sit in their own little yellow looking port?....but outta all that, what r the chances of a fuse being blown for the head unit and also a wire to it??..i see people having probs with just the fuse, i must have bad luck!