Anybody experience a blank Nav Screen that shows a screen about every minute or so "Checking Map Cd" "Insert Cd"? Thats the only screen that displays. Looks like it is searching for the CD but I can't get it out to see if it is damaged. The Rear Camera does not work. The CD player, Xm, Am and Fm players work fine but without the display. I've pulled the fuse [41 I believe] to the Audio Section but still does the above. It was working fine and when I attempted to put in a address for Apple Valley, Minnesota, the Add Address option was grayed out [vehicle was in park] and I had a feeling something was about to give me some heartburn. Thanks