Help!!!!! I have a 97-S320, and a 98 S420. Both have a couple of the bulbs blown in the knobs that open and close the dash A/C vents. Does anyone know how to get to those bulbs. I don't want to damage the wood paneling by prying on the knobs. From my experience with older MB's I know there must be a simple way to access the bulbs, but there is nothing on this in the owners manual or the maintenance CD I just bought. HELP Please.