I have an older Pioneer (CX-4000) setup. I have recently decided to finally put out satellites and take advantage of the Dolby Pro Logic surround sound. The problem is when you are running the system in surround the satellites crackle badly. The noise is equal to the volume so when you raise the volume the crackle/static gets louder along with it. Anyone know what would cause this crackle? I just replaced all the wiring so that's not it.