my amp runs fine but then all of a sudden it flickered the lights and just started sending static to the subs. it was like noise but was going along with the song. the amp didnt go into protect and once i cut my truck off and restarted it it worked fine for about another 30mins. i only have a 4 ohm load on it right now, just dont know what could be wrong with it.
Are you talking about alternator whine? Like a high pitched squeal that gets higher as the RPM's of the engine increases and gets lower when the RPM's of the engine decreases?
If this is the case make sure that you ran your RCA wires on the opposite side of the car that your ran the power wire on. That will normally stop the engine noise.