Best bet is to hook up to your cigarette lighter from behind. This leaves it useable for other things. I have a wire that hooks up to my cigarette lighter power and runs down to a distibution block that has 4 more cigarette lighter outlets. I hid this under my cupholders (just pull out the piece around the parking brake, then you can pull up the surrounding plate around the shifter and cupholders). There is plenty of room under the cupholders and it is easy to get to without tools. So this way, when I have extra accessories that I want hardwired, I just hook them up to the hidden power source.