Is the Garmin 796 hard wired to the TruTrak autopilot, or by some type of usb cable? Does it have to be done by an avionics shop? Has Garmin upgraded the 796? I have seen them as a 796 or area 796, any difference?
Units are updated by Garmin although I think the 660 (below) seems to get more love lately.
Figs
The Aera 660 definitely "gets more love" from Garmin, especially since Garmin has discontinued the 796 recently without announcing its successor. That sure won't stop existing 796 units from working just fine!