Hi, I have recently purchased this android box, and have it hooked up to a SONY DAV HDX475 system. We have tried running an optical audio toslink to mini toslink cable, but that didnt work, and neither did the 3.5mm stereo plug to RCA cable we tried. Have we been trying the wrong cables? Any suggestions on what to do?
That's not an Android TV box. It's a box that runs a standard version of Android you can hook up to a TV. You won't find help with your problem here as this sub is for devices running Android TV.
Maybe try the manufacturer support forum for that box, if there is one.