When i turn my car on and im listening to music I can her engine whine through my stereo its annoying when i just want to turn the stereo down. But it did let me know when the car was misfiring by the sound it made. What could be causing the feedback.

 

How close are you're rca cables to your power wire? That might be the prob if they are to close it will do that.

 

theyre running right on top of eachother ill check them

 

check all your grounds

 

the amp grounds or the ground behind the headunit