The sucker part goes on the windscreen. The electrical part goes in your cigar lighter socket.
Use my GoPro Hero on an adhesive mount on the dash of my KIA here. Plugs directly into the USB. Can be removed and placed in my pocket or the glove box when parked. Mounted Dash Cams tend to disappear with regularity in the D.R.!
Thanks. I want it hard wired to the car’s ignition and the wires hidden in the roof lining etc. It is not something I feel competent to do properly.