Originally posted by 96JdmAccord
I had that problem with my car also. I had a stereo system, and when I took it out it was fine.But go to your car and press the defroster button(the bigger one closer to the steering wheel). And if it on it makes a whistleing sound but when its off it doesent. I noticed that, and now they system is in my bros car and it does that......
in that case, the whistling or buzzing sound is coming from the speakers because a component in your system is grounded to the same place/piece of metal as the fuel control unit, other electric components, etc. and it gets feedback from them.
happened to a couple of my friends before.