It is repairable for about $30 US with a pair of seat heating pads from eBay:
http://www.ebay.com/itm/2-pcs-seat-heater-pads-heated-seat-pads-universal-carbon-fiber-seat-heater-pads-/151188864509?hash=item23338efdfd&vxp=mtrThere is a how-to somewhere here, search for it.