I installed an aftermarket HU several months ago. It has been running great along with 2 subs. Recently though my battery was drained, and when I jumped it the hu wouldn't turn on. I yanked the fuse on the passanger's side, and when put it back in (when the keys are in, or not it doesn't matter) there is a loud humming from the GM Class II Data bus Interface(thing you have to wire with your hu to keep your chimes from going crazy). The humming will last about a minute, then it goes away, and still no power to the hu.The door chimes don't work either Does anyone know what's going on?
I hadn't noticed this yet because I haven't needed to drive it. When I signal to turn right everything is ok, but when I signal to go left, it blinks a gazillion times a minute, like when you barely move the blinker lever and hit that 'sweet spot'. I guess that would cancel out the hu wire harness problem, right?