I have a 200x2 watt amp that i got from a retired audio fanatic dirt cheap. I hooked it up, it has the steady power flow......but no sound..... I replaced the av's and got new monster cables to see if that was the problem...didn't help. I then put it in a different car with a completely different set of equipment and I got the same result. Is it a fuse somewhere or is the board fried? Any input is greatly appreciated.