I have an 01 Yukon. I have an amp w/ subs hooked up now. I was wanting to do some mids and highs. Thinking of using existing speaker pushed w/ amp. I was trying to locate the factory amp. Anyone know where it is? Also did not change head unit, due to Onstar, anyone know how to make use of it w/ an aftermarket head unit? With my subs i have a slight rattling of my rear vents (on the outside sides of rear window) Can anyone guide through the removal so i can install some dampening material? ...more questions, but thats more than enogh for now. Thanx for any help you can give...
