I did though, have a disturbing problem today. Most functions of the CHR550 stopped working, including the backup camera even when shifted into reverse. Not sure if the Nav operation worked while moving, but the DVD video in motion did work. All soft keys while in TV mode were in-operable. Turned the radio on and off, then the Jeep on and off, but that did nothing. So I unplugged the iPod cable and the main cable feeding into the CHR550, with the thought of resetting it.
That did the trick
All seems OK now, and I am very happy that I have it installed inside the glove box. I would not have been pleased at all if I had to disassemble any of the dash/console to get at it.