That's what I installed in my Sequoia, but from aliexpress. I think the kit was around $60. I installed it to the wires running to a cigarette lighter and made some minor modifications to the switches so they would fit in the stock spaces. Cooling kits were also available from the same manufacturer, in which you cut holes in the seat foam to install small fans. But I didn't buy those.Heated seats are an easy addition. They make kits with switches that look like stock. They are about $100 on eBay. While I was at it I added rear seat heaters.