I have removed the Navigation Computer from my 07 MA. When I purchased this coach the DVDs were missing and I haven't been able to find these anywhere, besides I really love my Garmin (most of the time!)
Any way, I have removed this equipment and all of the wiring harness, except the GPS Antenna (which I assume I could pull if needed.) The system appeared to work and properly interface with the backup monitor.
So if anyone needs to replace any part you should send me an email. I'm not looking to enhance my retirement off these parts...
Contact me at: email@example.com
2007 Newmar Mountain Aire 4523
450 HP Cummins ISM on a Spartan K2 Chassis
2010 Explorer Eddie Bauer 4x4, nice
Good Sams, FMCA, Newmar Kountry Klub, AARP....