I liked the MyGig radios at first and thought about the same thing but getting around the IHSC (interior high speed CAN) was a problem on a vehicle that comunicates on PCI. Then I scrapped the idea when the software recalls started coming out, there have been 6 or 8 software update dvds sent to the dealer for us to update these units, so far. Then there are the hard drive failures that renders the whole unit useless. When I was at the training center a while ago, one of the instructors who had recently been to Detroit said there were pallets and pallets of the MyGigs wrapped up to be shipped back to Harmon-Becker. This radio was released way too soon, needed a lot more R&D before release to the public.
If anyone wants connector pin-outs for one of these radios though, let me know. I'll pull it off of chrysler's web site, just let me know if you want NAV/Non-NAV/with I-pod/etc.