Canyon Aeroad SP0077 - Garmin Varia | Bryton Gardia | Magene L508 | Wahoo Trackr Radar Halter / Mount

How do I install the Garmin mount?

Here are instructions on how to correctly attach the Garmin mount to your seat post.
Instructions
Garmin Varia RCT 715/716 Adapter Quaterlock

How do I install the quarterlock adapter?

Here are the instructions on how to mount the adapter on your Garmin Varia 715 / 716.
Instructions