Since us pickup guys are lucky enough to not have to run all the way to a trunk or hatch, i had 25ft of wire when i started, did the big3 wires a 1 run of it to the xtra cab and have about 6 ft left over... But my power run is only about 7-8 ft long cuzz it runs down the tranny hump, not up n out to the door sills and back in. I suck at guesstimating prices/needs, but i budgeted 100$ for my wiring, and was really close to it, like 110 or something.