hello, on my 1987 w124 300e... i removed the screw from the bottom of the shifter console wood and lifted up the wood. i then checked the window switch ( i wanted to see if something was stuck there.. its not going down... looks like i need a new one ) but thats not the big deal right now... i put it back, screw it back in, start up the car... and i get no audio!!! noo!!! i turn the volume up and nothing! move the the fader back and forth franticly and nothing has happened. i did not mess with any wires. i just moved the switch... radio turns on just fine and i can change the stations. but no audio at all from anywhere... i THInk i hear like a faint, very faint audio fromt he rear speaker but it doesn't seem like it.. ideas??? how much is the typical cost of reqiring the entire audio system? what about the entire car?