[IronCanine]

I ordered replacement seat springs (also called zig zag springs) and paper wrapped listing wire (aka spring stake wire) from wsusol.com (we sell upholstery supplies online). The seat springs have to be cut (be careful). I could not find seat springs with an OE "wavelength". We only replaced the passenger side seat bottom springs, but chose to do all five so everything was symmetrical. For the short connecting wires, we doubled a light utility wire (see wire just to left of seat frame in third pic) and connected the larger inner and outer wires in a twist tie fashion.