im very interested in this integra but the stereo is getting this weird feedback when pushing on the gas at 0k - 4k rpm. the car has a cheap keenwood deck, 4 channel amp for the components, and a ppi amp powering 2 jl w3's. the car has no capacitor and the owner has no idea how the stereo is hooked up.

i will be purchusing the car w/o the stereo anyways, but i would like to know if you guys know the sourch of the problem

it makes a high pitched wistling noise which comes through the speakers.

 

It could be a number of things and here are two most common problems.
Bad grounding (not a secure ground, too long of a ground wire)
Noise Interference with RCA wires (ran along side power wires)

It can be a simple fix though by isolating one thing at a time. You need to know how the setup was installed though.

 

ok its called an alternator whine. and since i wont be buying it with the curent stereo i odnt think ima have a problem.

 

I know what its called. It usually is tied to a ground wire or noise interference induced into your RCA wires.