As far as your belt issue, you need a new belt. but there is some very hand stuff call belt dressing which is made by a company called Gunk , itl be in an orange and white can at your local auto store or Walmart. The downfall to using it is it is just a temporary fix for the squealing, and your alt probably isn't able to work at its full capability with your belt slippen. BTW are you still runnen the fusion amps on the AQ's? if so I believe they are pushen the subs allot better then i thought.