wiring dilemma

i have a 97 gt and i am trying to figure out the door wiring harness in relation to the harness in the body. original harness was butchered beyond belief by a previous owner. got a set of harnesses from a 96 gt and a 98 gt. problem is the wiring does not match up on a few things and it is causing huge grief. i am not sure if previous owner deleted the door locks. my windows and locks won't work, when lights are turned on the dome comes on dim. is there somewhere i can run the vin to see factory options or maybe get the proper wiring harnesses?