Had alot of people message me regarding this conversion so i thought id write up abit more about it.
This will depend on your car and the options your car has fitted so i can't answer for all.
**Any white E-Chassis seat module will work**
The white seat modules have the same connectors as the F8X and are plug and play. The only thing you have to make sure if you have heated seats you get the module ending "861" so "860" means not heated. left and right modules MATTER. this is because of the canbus signals address left and right. If you use for example 2x right modules when you switch the right heater on both seats will operate.
(I did have to code the seat occupancy sensor out as the F8x one is not compatible)
After that its easy all you need to do is swap the connector from the e9x chassis. Using the E9X seat buckle fit it to the F8X seat. Swap the airbag connector from f8x to e9x. The polarity may have to be swapped IIRC as the f8x airbag would cause a fault otherwise.
Im not going into pin for pin wiring as its very simple but the f8x wire colours are as follows:
Red= power for lumbar/bolster. (I looped this from the power positive as i didint have this option before).
Purple= seat light. (I run this off the gearknob lighting)
Twisted pair= canbus (this will fit in the black power connector of the e92 plug)
Red/brown= positive (also same as e92)
Brown=ground (same as e92)
Attached is a pic of the e9x power connector with canbus and airbag connector.