http://www.amazon.com/Male-3-5mm-Stereo-Female-Y-Cable/dp/B000I23TTE
That in the 1 AV variable audio out should do it. I think that one ought to be outputting audio whatever input interface is currently selected, at least that's what the one on my TV does.
edit: http://www.amazon.com/Wireless-Bluetooth-Stereo-Adapter-Players/dp/B002DTRO9Q/ref=sr_1_1?ie=UTF8&qid=1288737344&sr=8-1 for bluetooth, though I've never used one so no idea on quality and brands and general compatibility.







