everything started at the same time, i got a jvc head unit boss 1400watt amp and 2 sony xplod 10s 700 watts each, the whine just started along with the loud noise when the track changes. the only thing that i can remember is that when i changed my relay for one of the fans thats the last time i worked on my car and this problem didn't occour right after my relay blew out. it just started like 2 or 3 days ago i got the ralay changed like 2 weeks ago.