Would like to put rear seat heaters in my 97 wagon, but I've never had the carpeting up or the center console out to know if Volvo pre-wired for the rear seat heating elements or ran leads for the rear heater switches. You can buy the seat elemets from Volvo for an arm and a leg, but whether you also need a wiring harness as well I do not know. I've flipped forward the rear seats and poked around a bit looking for some leads but can't find any. Whether they're hidden under the carpeting or the fiber board covering under the seats I don't know. Any help appreciated before I think about buying the heating pads and taking things apart. Dick