I've had to start a new thread as the original thread about bag mounts is locked https://forums.garmin.com/sports-fitness/cycling/f/varia-series/231833/garmin-needs-to-introduce-an-official-saddle-bag-mount.
Here is my latest creation made from:
- A GoPro bag clip https://www.ebay.co.uk/itm/141944518793
- A GoPro camera mount https://www.ebay.co.uk/itm/133782536190
- A Gamin stem top mount https://www.ebay.co.uk/itm/386139825095?var=653685078390
Also a bolt and nut from my toolbox to fix the parts together plus a piece of old inner tube to discourage the mount from rotating. I also wrapped several layers of duct tape inside the bag clip to make it a tighter fit on the loop on the bag.
I like the hinged arragement as it accommodates the situation of the part of the bag with the loop not being vertical (as in the photo).