If you're hardwiring your dash cam, it is easier to hide the cords than if you're going to run the power from your car's 12-volt plug on the dash. Once you know how you will power your dash cam and ...

to blowing a fuse, to electrocuting yourself or starting a structure fire." To safely hide electrical cords and cables, they suggest also using a nail safety plate.

Do not use multiple extension cords to span a long distance. "Daisy chaining, or plugging one extension cord into another, should be avoided, as [this] can increase resistance and overheating risk," ...

If you’re hardwiring your dash cam, it is easier to hide the cords than if you’re going to run the power from your car’s 12-volt plug on the dash. Once you know how you will power your dash ...