Search Google for BMW 6WB. I've helped a few people with retrofits.
Once you experience it, past the initial wow factor, it actually disappoints. Things like the lane departure icon are just on/off, it doesn't show you the side detected. You also lose HUD information like media and phone plus other things like turn signals. It just doesn't support it.
Most I helped went from the standard cluster to the full LCD. But if you have the extended cluster (LCD lower third) you get more functionality.
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