The feature is to browse files (specifically I’m interested in OneDrive) in Android Auto. The feature would allow you to see all the OneDrive folders (and/or the favorited folders only) and navigate through them. You could play all files in a folder.
An example is CloudPlayer which has this feature.
Problem solved:
I organize my music and audio files by folder and store it in OneDrive. When using Android Auto there is no way for me to navigate the folder structure to find the folder and file I want to play.
Brought benefits:
For me and other users that have organized folder structures, it allows browsing and locating which song to play from the Android Auto interface.
I see, they show up as metadata. I was hoping they’d show up a navigation layer. That doesn’t really work well for me as I navigate Greek > Artist > Album. If that was available I could make it work but still would prefer folders to avoid the extra AA-specific setup - I’d still use folders in the app or windows.