Stock stereo problems
Hello, I have a 07 focus SE sedan with a stock stereo system problem. Whether its on am, fm and even on cd mode there's a high pitched beepy scratchy sound that won't go away it does not get louder when I turn the volume up, it goes off when the deck is off and when it is on but when the volume is all the way down. What could it be? The deck? The speakers? Please help.