Just a quickie question to people who own the pioneer plasma 5th edition with the XDE digital media boxes. I have noticed a Audio Optical out on the box and was wondering if this is the Audio output of what ever is switched to the screen at the time. I would like to connect my AV system to the media box, and not have loads of inputs to the Audio system, just the one optical input. So does the XDE just switch the audio on all the input sources of the media box to the optical out of the source it is displaying at the time??? Hope this makes sence??