JOhnH
Touchdown! Greaser!
The knob on the Garmin 696 is split and they don't appear to be available. I found the knob on Thingiverse. As far as I can tell, it has the directions to print the knob, but I don't have a 3d printer. Anyone care to give this a shot for a reasonable fee?
https://www.thingiverse.com/thing:3873863
https://www.thingiverse.com/thing:3873863