Have you or anyone else done the side or top view yet? Considering doing so as I have a local JY with an X5 for cheap.
Also, thought this might interest you. Did an M5 steering wheel and F80 seat in my E84. Can also do it on an E93 without a doubt.
https://photos.app.goo.gl/Jt2rxhA2fhVYZ47c8
Full function, including heat, lumbar, and the //M light.
https://photos.app.goo.gl/UG4rGRmwmYpCzXxV9