Originally Posted by 2000silverbullet

I saw this brought up on another forum and the undertaking sounded fairly large, not too mention costly, to add the OEM functionality (harnesses, BCM programming, new seats, blower motor, etc).

It looks as though heatedseatkits.com has worked for some (below), they appear to be OEM for Ford(?) and a ton of other mfg's based on their site info:

https://www.ford-trucks.com/forums/7...t-heaters.html

This seems like a much less expensive option.