300d radio doesn't go off with ignition
 

Last night when I switch off the ignition in my 300d the radio decided to stay on. Had to pull the fuse under the hood to make it go off. The day before I was walking past the trunk and I saw the antenae go up about 7 or 8 inches and then retract. I hadn't been in the car all day. Radio and antenae have been working flawlessly up to this point. ideas?

My best guess is -believe it or not - your battery is dying. I remember when my battery was dying the climate control would come on by itself, the radio would come on by itself and a few other weird things happened. Test the battery if it is old to see if it charges.