Sonos Ray with Apple TV

I have a Ray with Apple TV, everything works ok except the audio choices. I have the optical connected and airplay works as well. The issue I have is I want the audio to default to the optical, the Apple TV seems to default to the Airplay which is the only way I can have volume control, when I switch back to the optical I loose volume control. The Sono’s app works fine and I can control the ray with other Sono’a in my home. In short is there a way to only have optical audio and control it with the Apple Remote.