Garmin Dash Cam 20 Headrest Arm

I replaced my Garmin Dash Cam 20 with a smaller Garmin Dash Cam 30, so I decided to move the 20 to the rear window. I needed a mount that could attach to the rear middle headrest of my Tacoma. evil_k's mount would't have worked, but I'll call this a remix since I drew inspiration from his.