2007 Factory Navigation Installation

[pushrod]

I'm back after a year. I traded my 2004 H2 on a car last January. I recently bought a 2007 H3 and kept the car.

My H3 has just about everything except the factory navigation radio, and I want that. I checked with the dealer today about swapping the 6 CD Monsoon unit for the factory navigation radio and learned that it could not be done. The 2006 models swapped out easily, but according to the dealer there is some difference in the 2007 radio system and the 2007 navigation radio is not available. The 2006 navigation radio will not work. Confirmed this with the parts guy at Lynch Hummer.

Has anyone replaced their 2007 6 CD Monsoon system with a factory navigation radio? If so, how did you do it and what is the part number? Any ideas about what I can do other than get a Garmin?