Well, this Avin Avant-3 satisfies my OCD for looking as close to OEM as any android system can and has some decent specs I think. They claim it will work with DSP and non Nav so maybe an option for me moving forward. And of course they are back-ordered... I'll see if I can speak with someone and verify the DSP compatibility.
https://avinusa.com/avant-3-for-bmw-...n-system.html/