Drive bottom seat cushion different for early M3?

[hari-bhari]

Hi all - I know that there was a revision to the model 3 seats sometime around 2018. I have an early M3 with the older seats (VIN 3xxx) and the bottom seat cushion heater doesn't work. Dealership wants $775 for replacement, but I can find a secondhand one for around $200.

I know the seat patterns are different between the old and new seats, but is the wiring interchanageable for the bottom cushion?

Thanks