I hooked mine up to the fuse box with a fuse tap. I have it tapped into a power source that allows for power in both the ACC and ON positions with the key. That way I can have a dim glow while I am drving or have a dim light while the car is sitting. I figured that I would get tired of having them on all the time so I hooked up two switches. One for the front seat LEDs and one for the rears. I really like how mine are set up.