I cant use the Pandora application in my Clarion (Subaru Facotry) head unit since the Android 9 update. I can use Pandora relatively normal through Bluetooth, but even that came with its problems. I had to de-optimize the application in the battery settings to keep from
Pandora closing whenever BT dropped (getting out of the car).
But I have not found a resolution to using the Clarion Pandora app with my phone so I can use thumb and list features.