[Android Head-Units] Darthsternie:
Heya, sorry I completely forgot to post about my Qualcomm 665 8/128GB Unit that I bought after putting it in.

Here's my thoughts:

Short TL;DR seems to be: Don't buy Nuuno or the other brands, according to BMW Forums get a Navifly Unit. (They seem to cost as much as the Nunoo or others but give far better configurability thanks to mods and seems to be more known):

The Configurations to look for seem to be Qualcomm 450/625 with 2GB/32GB or 4GB/64GB

For REAL Android 11 and from what I read even Android 12 it would be: 4/64, 6/128 or 8/256 (Look at the 6/128GB, all the other Units normally have 8/128GB)

Here's for more Information on how to get one and being sure that yours is legit and where I got this from (I hope XDA allows the Links, if not Google for "BMW KSW Android 10" and use f30.bimmerpost):

10.25" Android 10 HU discussion

10.25" Android 10 HU discussion

f30.bimmerpost.com

10.25" Android 9/10 HU theming and discussion

10.25" Android 9/10 HU theming and discussion

f30.bimmerpost.com

Android 11 / 12 /13 HU discussion

Android 11 / 12 /13 HU discussion

f30.bimmerpost.com

But since we're here about the Nuuno let me add some stuff about mine:

The Package with the radio arrived pretty swiftly and pretty much everything you need to tear apart my A6 4F was included.

Sadly the new Plastic Insert for the Radio/Dash is the wrong color (My older 4F uses a dark gray and the new one is silver like for the newer 4F) but that's not much of a issue, still looks good. BUT the fit is not that well done, it has quite a few bigger gaps all around compared to the original plastic. You tend to forget about it though the longer you have it in your car up to the point you won't even notice it yourself anymore or even care.

Same problems with GPS here, the Signal is pretty bad to okayish at best so also need to try to get the original GPS antenna connected but it's not a huge breaking deal since using Android Auto it still works well and I dont care about the built in one.

Android Auto Wireless is also iffy here, sometimes it tries to connect, the fails and never tries again until I disconnect and reconnect my Phones Bluetooth connection to the headunit, then it works first try. What also seems to help is immediately after the Unit is booted up opening the zlink app, Then it also seems to work 90% of the time for me. Wired Android Auto works 100% of the time.

Using the Steering Wheel Controls is perfectly fine, I can even skip songs ahead or go back with the left one that normally selects the Input. That is something my older Android Auto retrofit module couldn't do.

NEVER EVER LOG INTO YOUR MAIN GOOGLE ACCOUNT ON THESE "FAKE" OR OLDER UNITS. That is sadly a well-known practice in most of the Android Car Radio Forums since many seem to have that annoying bug that deletes your Contacts. The Navifly/KSW Android Radios seem to not have this/or it got fixed.

Better be safe and always use a throwaway account on these things.

The Muting Sound when going to one of the original Car Menus is pretty bad, or well on mine it doesn't actually mute, it stops playback. If I start the music again from my phone I can listen to my Music and go through the original Car Menus. It sadly aslo cannot be deactivated this "Feature". Only on the Navifly/KSW Units mentioned in the BMW Forums you seem to be able to do it which is probably why I will get me one of those. Hopefully I won't forget to write a bit about that one too.

Lastly the AC: On my MMI 2G 4F the Display shows the correct Temperature that I set on my AC in the Display..

I hope this also helped a bit since these Units don't seem to be well known about only or atleast reported biut if you look on Aliexpress they're pretty much the first 10 you get shown when looking for Audi :)