12 volt power

Make sure you fuse things properly. I had a power wire jump out of my hand just the other day, about 10 minutes after I installed a fuse before the door lock, and it probably would have burnt my factory relays up if it had not been fused. I'm not sure how your fuse box is to get to under the dash, but I know mine is a pain in the arse. Usually you can add to the little fuse panel in your dash, and run some more things off of that. I ended up running a cable from my battery to a new 6 post fuse block under my dash for various electrical components. I can hook up 6 different wires, or more on one circuit, and they are each fused. It's up to you to decide which way you want to go, but make sure you fuse them! Hope that helped, Chris.