Thread: Heated Seats Retrofit?

yep - it's a reasonably common modification in Europe. The seats are heated with simple elements, so as far as I remember there are two wires (pos and neg) that go to batter through a switch, and another two wires that plug into the seat base to power the pad there.

Regarding the back seats, it's possible to buy aftermarket heating pads on eBay - just lift the upholstery, stick the heat pads down on top of the foam, and redo the upholstery. Power as you would the front seats.

Universal Heated Pad Kit 1 Seat 4 Pads Heater Car Truck SUV 3 Way LED Switch | eBay

Take a look at the instructions on eBay to see what I mean...