I know I am taking a risk, but yesterday was my birthday and I decided to buy these seats:
The seller claimed they are from a 2009 997 with 51,000 miles.
They have all the options I wanted including heat.
There is a post on Rennlist in which a member named Floridaman said he was able to make seats like this work:
https://rennlist.com/forums/997-forum/1279635-18-way-power-seat-test-help-2.html#post18593747
Although other members had issues.
As Floridaman recommended on Rennlist, I also have the pigtails from the car.
The less complicated side (I assume it is the passenger) is mostly power and ground.
The twisted wires are most likely the CAN high and CAN low which is for the memory.**** I am assuming anything predominantly brown is ground and predominantly red is power.
I have a computer power supply that I can use for 12-volt power.**** My plan is to use this to power the seat and experiment until am comfortable with my understanding of how the seat operates.**** I hope that I am as fortunate as Floridaman and have working seats without too many complications.****
There is a good series of videos on YouTube showing how to connect the seat heaters from 997/987 seats and make them work with 986/996 controls.**** I'm not planning to make use of the CAN bus, so I don't expect to make to be able****to make the memory work.
I welcome comments and suggestions.