Nothing to be scared of.

Lift the switch plate again. The rotory switch is the fader for the speakers. Just push the wire connector back onto the back of the switch.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport