This has probably been discussed, but I am getting a call back from my dealer in about 15 mins and wanted to know if the 430N can easily be swapped out for a 730 by the dealer?
My opinion, repeat, opinion, is that it should be easy to go from a 430N to 730N but not the other way due to the 430N needing the external Uconnect module and additional/different harness. The Uconnect is built in on the 730N.
Unfortunately, because of wiring differences, the 430 and 730 radios are not swappable.
The Garmin radios (mfd. by Mitsubishi) are not being discontinued, there was a recent supply shortage. They are scheduled to continue in the 2012 models.