WaHoo, I got it all set up. The Com Radi is connected & interfaces with the AF 5600. I successfully flipped channels on the Advanced Flight, and then selected the Tower, Grround a Control, etc. You can see the channels match on the Garmin & the AF. Tomorrow I go out and do the two step dance (360 spin) with her to set the Magnatometer, and I'm ready to go flying. Looking at the heading it's damned close without doing the Calibration of the Magnatometer.