Scott's dart, not wanting to crash Dartmans post, there are many seat heaters on ebay. Fitted one for a mate 11 years ago. Still works fine, as good as some expensive units I've bought! Of late I've been fitting ones with 5 or 6 heat settings, much better than the hot or even hotter settings on many 2 stage units. I think most people that say they don't like heated seats have only tried the 2 stage units. Personally I won't trim seats for myself without heaters. Just finished a retrimming seats of a car I've owned for 30 plus years. Fitted heaters to the rear seats as well as the fronts!!