Me and a friend were installing a new radio into my car. when working on the wires we got a spark from 1 of them. After we got the wires done we plugged up the radio and found it wasn't working. it doesn't seem to have any power. We thought we might have blown a fuse but can't seem to find 1 that is bad. I also noticed my interior light isn't working when the bulb is just fine. So does any one have any idea what fuse I could have blown if that is the case?