I bought
this kit with my G1W dash cam
I did the install at the same time as my homelink mirror using an add-a-fuse for each. I used some foam tape to keep the wire up in the headliner. Make sure you check out the diagram of the clips on the A-pillar so you know where to apply pressure to remove it without damaging it. Pretty sure I tapped into the Audio fuse in the driver side fuse block for the dash cam. It was a simple install.