In article ,
Jeff wrote:

paul, you can download and install the traner for most of garmins GPS's. go
to garmin.com and then to avionics. its free andit will give you a feel for
what they do. the cnx80 is about the only one that does not have a trainer
for it online.

There is a trainer for the CNX. It's not a real simulator like for the
other boxes, more of a multi-media guided tour of all the features of
the box. More than a manual, but less than a sim.