I own a Epson 8350 projector without sound capabilities. I am trying to get the ROKU Premier to pass sound to a BOSE Sound system without hdmi capability. The roku is connected to a splitter that sends the picture to the projector. There are two hdmi ports on the splitter and both send the picture to the projector. I cannot get the rca connectors from the second hemi cable that is converted to rca male pins to output sound to the BOSE. The bose works very well with a sony Blue ray player that sends picture via hdni to the projector and sound via the rca cables to the bose. Stumped.