My 2001 spider is having major electrical problems. First my clock went out, then my mirrors and cigarette plugs. I changed a fuse and got my mirrors to work again. But now my radio went out along with my automatic locks and car alarm, also the lights on the rear view mirror. No one seems to know what the problem can be. I have not changed the radio since I bought the car, and that was a year ago. Can someone give me advice?