Both my amps share the same power and ground blocks. I know I should have disconnected the main fuse but didn’t. Took the sub amp out and when I went to reconnect it I put the ground wire from the sub amp into the power block rather than the ground one. Now my Pioneer 8604 has its power protect light on. I get a turn on pop and a whine noise through my speakers at 0 volum and I can still get music to play when I turn up the volume but still has the whine. Is my amp done for or just disconnect it for awhile and should go back to normal? Can the speakers be damaged to make the amp go into power protect?