i have a bone stock gmc c1500. right now it has the manual locks and windows. my plan is to get the parts from a junkyard and swap it over. ive got the wiring schemos, and the drivers side. if you want the stock look you need to pull out the black panel thats bolted to the door and swap in a pwr one from the yard. drill your holes in the cab to run the wires and then get the under dash harness for the doors. they have it for 88-94 only. after that they went to the new style dash and gm doesnt sell it alone. pretty simple install just takes finding the right stuff.