Hey guys ive had my n2 and havent had any problems with it at all for 3 years now. Today the unit started making crazy sounds through the speakers, like a loud thump thump thump and will not stop. I thought my amp was fried so I hooked up a diff one and nothing changed. My buddy has an n2 we hooked up his and it worked great, so I have narrowed it down to the unit is malfunctioning. Heres the catch, my speakers are on a 4 channel amplifier. When I hook up the speaker wires directly to the head unit it works perfect (blue cable). Then when I discconnect those and plug the rcas into the white harness and turn it on I get the thumping again,it also does this when I hook up the sub rcas as well.. What could this be. Its not the white harness because I tried a new one and that didnt change it? Thanks so much guys for any help. -Dave-