So I got this problem. I'm riding sown the road with music loud and my front speakers start this thumping noise, then power fuse blows. I checked everything: speaker wiring, broken rca, grounds. When I replaced the fuse, reconnected the rca, and turned the radio on, thumping started again got louder w/o turning the radio off and fuse blew again. I'm thinking this is a faulty amp. Any ideas?