I'm at my wit's end! I have a Sony Freeview box which I want to connect to the digital coaxial in of my Sony surround system. The output from the Freeview box requires a 3.5mm jack so a guy at Maplin advised me to buy a mono 3.5mm jack-to-coaxial pin. I've plugged it all in and can't get a sound. What's going on??? I've spent almost a year researching the bits and pieces I want for my home cinema system and I can't get the thing connected! Help!