Android Auto doesn't find apps

[AC Question]

Android Auto isn't detecting apps on my radio. I have Podcast Addict and Google Play on the list of available apps. However, Audible, Spotify, and Pandora don't appear in the list of available apps. Is there something I am supposed to do to get the apps to appear?

I am using SyncGen3 w/ Android Auto and a Galaxy S7 Active phone.

 

[dpham00]

Mod Note, I will move this to the s7a forum for more visibility