[Android Head-Units] polarbear_no:
My first impression

I got the Avin 10.25" unit running Android 7.1 for my E70 a few weeks ago, with most of the available accessories (front camera, DAB+ dongle, GPS splitter, AUX splitter, CarPlay/Android Auto adapter, OBDII dongle, ext mic).

Here's my first impression and experiences:

PROS:

The original BMW screen, steering wheel buttons and control wheel works exactly like they did before. OEM navigation looks better on the big screen.

Despite all cons below, it is rather cool to have music and video streaming "built-in" to the car.

CONS:

When checkmarking the accessory list on Avins website, it didn't say anything about the front camera not working for cars who has a light sensor on the windshield in front of the mirror (the one that makes your headlights switch low/high beam automatically). I only discovered this after receiving the unit, and now I have a useless camera.

DAB reception through the supplied antenna is sub-par. The supplied DAB+ app is very basic and doesn't even show album art. However I found a better one on Google Play, called DAB Z. Haven't had a chance to test it thoroughly yet, though.

The unit is too slow for Android split screen mode, unless you only run very lightweight apps. Spotify and Sygic is a no-go.

Haven't had a chance to test Android Auto mode yet, since the app isn't yet available in Norway. It was possible to install it from apk-mirror earlier, but Google have apparently made a block inside the app itself now).

The two things I was looking forward to the most, was 1) Using Spotify directly in the head unit, preferrably by spoken commands in Google Assistant. 2) Using Google Maps for navigation. Sadly both apps appear to be rather heavyweight, which makes them very slow on this (underpowered?) unit. Both apps is possible to use if you can accept some stuttering and unresponsiveness. However when trying to navigate with Google Maps it takes several seconds between every screen update, so that's not an option. Instead I've downloaded Sygic, which works ok - but all settings is lost every time the car is shut off - wtf??

Using Google Assistant is possible - but you have to be very patient as it takes several seconds from the button press until the unit is ready to listen.

The phone app is very basic, and the sound quality is poorer than the OEM bluetooth connection, so after a few days I went back to use my phone with the OEM BT/phone instead of the AVIN unit.

You can't use the OBDII Wifi adapter while at the same time using your phone as a Wifi Hotspot for the Avin unit, which sucks because I want both features to work simultaneously. I have a OBDII BT adapter laying around, hopefully I can use that instead as I'm not going to have my phone connected to the unit via BT anymore.

The steering wheel next/prev buttons doesn't work with Spotify (or any other 3rd party apps, as I've understood), only with the supplied music player. Anyone know a way to program the steering wheel buttons?

Except for the navigation button, none of the main menu buttons can be programmed. You can't have e.g. Spotify on the music button or Netflix on the Video button.

Any remedies to my cons list is greatly appreciated! :)