Get this!! Bad radio fuse causes radio to work all the time.
 

You heard it here first.

Had yet a new problem with my Mercedes. On Sunday, suddenly, the windows would not go down, and the radio would not turn off as usual, when the key was off.

I found out the reason was that the radio fuse was bad. This causes the radio to work all the time and the windows to not go down. Is this weird, or what??? Anyways, make mental note for when this happens to you!

Jeff
1991 300d, 95k

what does this mean "the radio fuse was bad?" in my head, I'm thinking it either
is intact and functional (good) or it is open (bad). so if the fuse is open, that
would seem to defy the laws of physics by allowing current to flow through an
open (bad) fuse. can you better describe the specific conditions vs interpreting
them in general terms? tnx