Hey guys, I have a AVIC-D3 that has been installed in my truck with the nav/video bypass since 2007 and has been working perfectly until recently. It started about 2 weeks ago when I got in the truck in the morning and the Sirius Sat was playing on the station that it was on when the truck was shut off but the screen said "Insert Appropriate Disc" even though the factory nav disc was in the unit. When this happens I can't do anything other than volume up and down and also my back up camera works. I called a local stereo shop and he had me reset the unit which screwed me for a day or so because