Anything is possible with enough planning, effort and money. Despite our requests, headquarters ordered our 3rd Gen 2004 3500 with manual, regular mirrors. They were barely adequate to see over the rear dually fenders, let alone to use for towing. So I ordered the Cipa electric mirrors to fit the 2004. Then using the wiring diagrams for both the 1996 and 2004 models, I adapted a 1996 adjusting knob control to operate the 2004 mirrors. It took an entirely new circuit, but that was just running wires.