I am considering Sonos AMP with Monitor Audio speakers and turntable but I want to output TV sound to AMP via HDMI ARC. I also have PS4 and satellite box with HDMI connectors. However I only have one hidden HDMI cable to/from TV and I do not want to have additional exposed HDMI cables from the PS4, etc. I am trying to work out if an HDMI switch/splitter will solve the problem, and if so, what spec should I be looking for. Is it possible to connect HDMI ARC out from TV to switch/splitter input and then connect switch/splitter HDMI output to AMP HDMI, and also connect PS4 to switch/splitter HDMI input to get to the TV as in diagram below ? If possible, any downsides ? Or is there another way of achieving the same result that I am missing ? Thanks