I have been trying to track down previous owners of my car with no luck at all. When I got it all of the places a build sheet would've been were out of the car, My car had a bench seat and rear seat to match for a 70 Duster but the fender tag says buckets. There was no build sheet in the wrong seats that were in my car. The glove box liner was shot and no sign of a build sheet. The car had no rug or rear window shelf, headliner and the gas tank was reeplaced before I got the car. I have even searched online for a build sheet but have not found one yet. I will have to go take a look at the wiring to the switch but I think 1 wire is black and one is white. Would this little plate that says map light be a screw on item. I don't think it it slill there but I will take a better look at the dash frame near the e brake for signs of it.