StationHead volume is really low when the channel is playing music through CarPlay. Normally on my unit, I have the volume at 10 for everything. Whether it is terrestrial radio, SiriusXM, Apple Music, or Spotify. 10 Works well. But with StationHead, I have to have it on at least 20 to hear the music at all.
And when the host switches to Talk Only or Talk And Music, you do not hear them unless you adjust the volume up or down.
But when you do, the host is as loud as the unit normally is at that volume setting, so I have to change the volume back to 10 while they are talking. Then when it goes back to just music, I turn it back to 20 so I can hear the song. And even then, it is not as loud as the talking was.
I cannot confirm or deny if the issue is also present on AndroidAuto.