I've been doing some more research and I think the JoyeAuto retrofit is the exact same thing as the Unichip retrofit, as discussed here:
https://f30.bimmerpost.com/forums/sh....php?t=1423013
Rumor has it a wireless version is in the works which I would be much more interested in than the current wired-only version. I'm also hoping they add support for the car's OEM mic rather than using a separate mic for CarPlay. If those two features come with the next release, I'm in...