Just bought a '04 Sedan last week Tuesday. Brought her home and everything was fine until I tried listening to music. No sound comes from the speakers but when I hit the "Audio" button I can hear the 'beep' sound. Occasionally the sound will be fine when I start the car and if I hit the volume button to turn it up; that's it, gone! It's really annoying to drive a car without any sound, so I was just wondering if there's any solutions to this. I was already quoted from the dealer that it would be $450 to replace the head unit.

 

The solution is replacement. Preferably aftermarket,