I have an e39 523 and want to swap out my tired steering wheel (looks like a dry-rotted bus wheel) for an m wheel, but just cant find and electrical slip ring with the correct connections for my late model.

Is there and M steering wheel for the early model e39's.
I would like to keep the fuctionality of my current wheel.

Any Help would be appreciated as the Dutch (Where I live) say no and the American have no clue about about my model.