When you say the bulb is fogged, is it fogged white? If so that is actually a frosted bulb, usually installed in the ashtray socket. The clear bulbs go everywhere else. The clear ones by Sylvania/Osram can be found at your local Pep Boys or other parts houses, I think they are only in one wattage.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.