Wow that exact same thing happened to me! I was driving down the fwy, tuned off the stereo, then it wouldn't turn back on. There was just an odd character showing on the screen. To fix it, all I had to do was take out and reinsert all the fuses protecting the radio. It was odd, since none of the fuses were blown, I guess there was just a bad connection or something. The fuse that was loose was in the fuse box located just inside the carpeting to the left of your left foot while you're driving. Just pull the carpet back, and the fuse box will be right there. I forget exactly which fuse it was, but there should be a diagram of them either on the cover or the inside of the fuse box, or inside of the owner's manual under electrical. Locate the fuse, see if it is blown or not, then replace the fuse. If that doesn't work, do the same thing with the fuses in the main fuse box next to the battery under the hood. All I had to do was take the fuse out and put it back in, it wasn't blown or anything. If you can't find out what fuse it was, I can get the owner's manual from my car for you. Very very weird, my cd changer still worked just like yours. Hopefully it's the same problem and you can fix it. Good luck.