The audio is crap.. bass is almost non-existent.. and forget about Bluetooth calling.. otherwise.. the screen is nice .. however I think this exact mode you got is android 8.1 .. it’s android 4.4 with 8.1 overlay.. u need to look for the same with px6 processor for 8.1 to work..
US $460.00 | 9 inch Screen Android 5.1 For BMW E46 DVD GPS Radio DVD Player
https://s.click.aliexpress.com/e/PLfHEkg
I’m sharing the link for the scores it has.. as you not like the look of it.. although being a larger screen

Dr. Moustafa Kassab
Bmw e70 2012