About a week ago I was messing with the wires on my head unit and after I couldn't get it to turn on. Turned out a fuse was blown so after replacing that it seemed to be working fine. The next morning when I turn off my street the speakers cut out but the sub was still going and the head unit had power. I didn't have time to mess with it until today. After checking the connections on all the wires I found they were all connected just fine. So I hook everything back up and fire it up but now there is no power to anything. I already checked all the fuses and they are all still good. Where should I go now?