I have an LG flatscreen with multiple HDMI and RCA audio inputs, but no audio outputs other than the optic out, which connects to a sound bar. My LG Bluray player has no audio outputs at all, other than through the HDMI. My Pioneer surround sound processor only has RCA inputs. I would like to be able to process the audio signal from the Blurry player and my Firestick through the surround sound some of the time and through the sound bar some of the time like I did with my last Bluray player. How do I do this?