Not sure if anyone out there has done this, but need help. I'm trying to run a optic cable from my PC and my Xbox to a splitter to my mix amp (Astro). So I can get audio from both at the same time. I use my PC for Xbox live chat cause it's cleaner audio when I stream with friends and as of right now, the only way I get Xbox audio to my headphones is to run a 3.5 from the controller to my mix amp and the audio is trash. Haven't been able to find a splitter that would seem to work most are 1 to 3 or 1 to 2, and don't work in reverse to my knowledge .