GNS-400/500 Series update!
FYI Folks! I've been warning of the end of factory support for the GNS 400/500 series for a while.
It's too late in the life cycle of the GNS units to spend the $3500-$4000 to install one and ... I've been suggesting that if you have a 400/500 unit that you should upgrade now (to Avidyne!) while their is good value in the GNS units. I just got some confirmation that this is getting close. A client of mine spoke to a Garmin tech about the 430W and the Garmin tech warned him that "in the near future, the GNS units will no longer be supported"!