When I first installed the empeg in my Isuzu Rodeo I got tons of feedback from the empeg and the brake light in the car. It turns out that the amp I bought was extremely cheap (I guess it doesn't pay to buy a $1300 head unit and a $50 amp). The second I had my $300 Kicker amp put in, everything sounded great. Just telling you my experience with unwanted interference.

-Rob
-----
12GB MK2 Blue 090000736 (6166 in the queue)