Stratus sixer

Hi, I have just got my hands on an M6 steering wheel to retro fit onto a 645ci. I know it's been done a few times, but can anybody shed some light into the wiring? I also got the slip ring from the M6 as I read somewhere that it was needed. I will compare it to the one I already have on the car to see about the differences.

Any advice or links appreciated. Did put up a post last month to see if I could locate some forum members on here, they have done this mod, but no replies have come in yet.

Thanks 👍🏻