I have a 2005 300c that has the 6 disc changer with nav. The other day I took one cd out to swap with another and it never prompted me to insert disc, it just started trying to load with no disc in that slot. I remove the other five cds and it does it with all spots. It shows "No Discs Loaded" but when I hit the load button it just trys to load a disc that it knows isn't there. Is there anyway to reset this stereo? I've tried disconnecting the battery and pulling the fuse for a few hours but that didn't seem to do it.