I just circled back to this thread while searching for reviews for the Hansshow ventilated seat kit. I’ve been thinking about hacking my drivers seat apart to add it after the local Katzkin installers said they couldn’t do it.
I ordered the Katzkin interior with Degreez heating/cooling for my 3P. When it came time to do the install, their installers said it couldn’t be done due to the seat occupancy sensors. Katzkin was great to deal with and immediately refunded me for the entire cost of the purchase.
Just wanted to relay that info for anyone who finds and reads this thread in the future..