Connect 6 - system audio is routed to CONNECT 6 input

When I'm on a call and i have music playing on my computer it gets routed at max volume into my input and everyone can hear it. i've spent an hour trying to figure out how to resolve this in Control Center and I cannot for the life of me figure out how this thing works. My expectation was to see a software out, software in, mic in, and be able to adjust where they send. I'm sure this is available but I cannot figure it out. Can anyone give me any guidance?