Although I'm taking my SLK to the dealership tomorrow, I would like to get some input on a problem I am having. For the last two mornings, my radio is working when I start up my car but after several seconds, I hear a click around the fuse panel by my door and then the radio blanks out. When I start up the car on the way home from work, it starts working again. The click I hear when it blanks out, sounds like a fuse blowing or a circuit breaker popping. The last two mornings have been colder. (Florida cold; 40's) I have the Harmon Kardon system if that meand anything. Any input would be greatly appreciated. You guys were right on with tips for fixing a rattle and creeking from my roof.