Add the ability to select specific music from a phone via bluetooth, similar to current USB operations.
A 2014 Subaru Outback has audio controls to fully able to list and select the artists, albums, and tracks from the Bluetooth connected iPhone. It is great when my daughters are in the car as they can then pick the music without my needing to remove the phone from my pocket.
It is actually important in many states as operating your cell phone while driving is illegal. With the current implementation, this limits you to play what is quede up in the phone and skipping to the next track.