:sad: I am getting the often mentioned A/V off message with the cd changer constantly shuffling the discs sound system off and on. The nav system is working and the fiber optic lights on the amp and DVD units in the back are on. I am feeling from reading all the posts that the CD changer is at fault. My Ranger is the HSE 05 USA version. There does not seem to be a lot of choices out there for replacements. Repair can be had but a lot of improvements have come down the pike in CD options and digital coversion technology. With High Resolution downloads getting more available it would be great to play self made discs etc.. Has anyone out there done an upgrade without redoing the entire electronics. I am thinking a new changer unit with modest new harness adapter to the existing system.