Yep in a 92 w9. Used donor doors that already had power windows in it. The right side was already power. If that is the case you can piggy back off the circuit or wire in a new one. Fairly simple to do regulator just needs a fused power supply switch and ground. Putting a power regulator in is a PITA. Mine had upholstered panel then steel inner panel. Found a door that had working parts and glass an I was in business. Time saved was money saved.