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I have considered the same swap. In the winter that rear window ices up badly. I have an 07. From an electrical standpoint, a lot of it is already there. The heated side mirrors switch serves double duty. As I understand it, the switch operates 2 relays, one for the mirrors and one for the window. The harness ends in an unconnected plug under the driver's seat. So you should just have to plug a window relay into the empty socket and extend a wire to one side of the heated window. The other side is grounded to the sheet metal.Heck, I'd rather swap my power slider for a solid window with a defroster. I never use the slider.
I have a 2019 Warlock with a manual sliding rear window and it drives me crazy, what you find out? Are you stuck with the manual sliding or is there an option to get a power one?I have a manual slide on my 2020 warlock. Can I swap it for a power slide? What would I have to swap or install?