Tesla might be integrating the Apple Music app into its vehicle software soon. The app was spotted in prototype Tesla vehicles on display at the Petersen Museum, a car museum in Los Angeles that currently has an exhibit in partnership with the car maker. The Apple Music app appears to be fully functional, but it isn't available to customers yet.
Tesla usually has a big "holiday update" in late November or December with a big feature drop, so that could be part of the announcement.