Helped them test out the new canbus boxes over the weekend. There were 3 to choose from and after listening to all 3, there was only 1 that stood out as being significantly better than the others. The other 2 boxes all had signs of having too much gain and causing that distorted crackle sound, even when listening at volume levels between 5-10.
I have a stock 2018 B&O system, and like to listen to loud music (more bass the better), and with the new canbus box I didn't notice any any of the previous distortion issues when playing Pandora or USB music through the tablet. Listening to music between volume levels 10-15 sound way better than before. At these levels I can't make out any distortion, and if there is any it's hard to tell.
On another note, the new software allows you to reorder the top menu (Navigation, Console, Music, etc.) to your liking by long pressing an icon and then dragging it to the position you want it. Icons are still the same and un-editable, but this is a nice feature they added.
Gtibbot mentioned above that the built-in Android Auto (AA) screen only uses 1/2 the tablet. As an option, those AA dongles that you can get from Amazon, will make the navigation screen is slightly larger at about maybe 3/4 of the tablet screen. However, there is a black letterbox effect at top and bottom of the screen which take up the remaining 1/4, which sort of sucks. IMO the best choice of navigation is using the one that's on the tablet itself and having a WIFI connection.
Hope this helps to keep everyone updated.