I purchased this adapter for our frameless mirror and dash cam install. It’s been solid:
Dongar Mirror to Dash Cam Power... https://www.amazon.com/dp/B082ZSFQ8C
I just went thru this with my 2018 CX-5 and my gf's 2021 CX-5
For 2018 CX-5 this adapter plugs directly into the connector in the mirror: https://www.amazon.com/gp/product/B07KZSBC54/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
For 2021 CX-5 this adapter connects to the connector inside the cover: https://www.amazon.com/gp/product/B082ZSFQ8C/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
Not sure what's in the 2022, the connectors are very different so they are not interchangeable
Anyone using the Dongar Mirror to Dash Cam Power Adapter?
https://www.amazon.com/SimpleUSBPort-Dashcam-Adapter-Frameless-Mirrors/dp/B082ZSFQ8C
Super happy with my Viofo A129 Pro Duo.
If you have a frameless mirror, I highly recommend this Dongar adapter for switched power, unless you also need constant power for parking mode.