I am setting up a connect in the living room and want to connect it to my Denon AVR X4000. I am using the optical input "CD" on the back and can play Spotify through my system. The problem is my system normally is FL CC FR and sub. When I switch over to Sonos it eliminates the center channel. Going through the other inputs the CC is there but not on the optical CD with the connect. It also doesn't seem to give me the ability to configure the speakers per input channel. Has anyone run into this before? Any advice? Thanks!