Spoke to two different parts men at Ford and their are only two looms early and a later looms or the RS, Not two looms released together for heated and not heated seats. I’ve also read an article from the Ford RS site USA and they have done it.
5 parts required climate unit and the 4 pads and apparently everything is Ford ready and their. I double checked and it was the Mk3 as the climate control is digital and that’s one part shown along with the Recaro pads.
It involves a seat complete strip down to its bare bones
RS Edition.
FPM375 Rocks
The rest of the “M” maps suck