Review on Optimized Dash Camera Hard Wire Kit- Micro USB Direct Hardwire Charger Cable Set for HD PRO & Micro USB Dashboard Cameras- Power Supply Car Charger GPS Car DVR Power Box (Right Angle Micro USB Fuse Kit) by Drew Diaz

So far so good. I was worried this would destroy my battery but after almost a year I still haven't had any issues. Installation is easy if you are familiar with electrical systems. The fuse adapter provides power and then just grounds the metal frame (I check continuity and voltage to ground at the cigarette lighter adapter to be sure). I drilled a small hole in the metal behind the glove box after realizing it was a floor and then screwed a floor spade into it.