Review on 🔌 REARMASTER Universal OBD Power Cable for Dash Camera - 24/7 Surveillance and Accessory Mode with Switch Button (Micro USB Port) by Matthew Nielsen

Can confirm it works for my Audi Q5. I've used this for my DVR and it's a lot easier and potentially safer than a backup bypass setup. It powers my DVR perfectly and I think if your DVR uses Micro-USB it will probably work. Comes with a long cable that is enough for the front DVR, especially if you are trying to do a clean install (hide the cable in the grommet, pillar and headliner). I don't think it would reach the back of the car if you were hoping to use it for a backup camera.