I managed to work out the details on mounting the Garmin 696. I am using a modified Stein mounting technique. I mounted a back plate to the 696 that was wide enough to accept #8 screws that come from the panel an anchor the 696 in position. Standoffs on the screws will determine depth of the unit. I didn't have 1.25 or 1.5 inch screws so that part will have to wait. I ended up making a second backing plate as the first one ended up being too narrow (edge distance on the screw hole compromised). Also I test fit the Dynon D60 (backup instrument). Looks like the cutout in the panel is perfect as is. I need to trim the tray to allow room for the AFS3500, simple. That should be an easy installation. Even the wiring sounded pretty simple on that unit.
696 in position
Backing plate (4 screws with standoffs will bridge the gap between the panel and plate)
