All done! You can mark me as "Arrived and fitted" Dave

Thank you for organizing the group buy and helping with the process. And thank you for the guide!
Things I'm very excited about:
- It looks awesome! The screen has good resolution and good brightness, and the main interface is very pretty.
- Bluetooth music from my phone with controls on the steering (Audio quality seems to be somewhere between AUX and radio - it's ok for my needs)
- Visual radar for the parking sensor! I now know if the obstacles are on the left or on the right
Things that are less awesome:
- No iDrive controller button for directly playing MP3 music (Most buttons turn the screen black with "No signal", including "Media" which I would kind of expect to do just that.)
- The buttons on the iDrive controller don't always register the press. You need to press the buttons with a bit of extra pressure, otherwise they just click and no reaction.
- The "Menu" button needs to be held for a second or two to actually work for most screens.
- The "Back" button would have been nice to be mapped to the Android back button. It is useless outside the main menu.
- No option for customizing the interface options. I would have liked to remove a few: like "Video", "DVR", etc. or at least move them around so I put on the main screen the ones I use more often.
- WiFi doesn't support 5Ghz only 2.4 and the range is not fantastic. Can't get signal from my carport

I will have to improve the signal from inside the home, or find a good way of getting Internet from my phone (via USB doesn't seem to work, nor via Bluetooth and I don't want to always keep a WiFi hotspot on my phone)
- A small but irritating one: a piece of the screen protection wrap got stuck in a corner and can't get it out. (tip for new installs: carefully remove the screen protection, or better yet do it before finishing the install, in case it doesn't come off entirely)