I've gotta 32 inch class Panasonic Viera LCD tv and the only audio out I have is either HDMIx2 (one being used for my xbox 360) and a square looking jack which I've never seen before. It's labeled digital audio out. I was hoping I could wire my stereo, which runs regular RCA cables but it's obvious I can't do that. So I'm wondering what kind of cable do I need to have sound run through external speakers so I don't have to worry about ruining my tv speakers. I've found a cable but I'm not sure if it's correct. I'll post a link below. Without spending a whole bunch of money, what do I need to do to run my audio to external speakers?
http://www.futureshop.ca/en-CA/product/dynex-dynex-1-8m-6-ft-optical-audio-cable-dx-ad128-dx-ad128/10140549.aspx?path=05828a32c9bb4450fd69d540fb5280afen02
http://www.futureshop.ca/en-CA/product/dynex-dynex-1-8m-6-ft-optical-audio-cable-dx-ad128-dx-ad128/10140549.aspx?path=05828a32c9bb4450fd69d540fb5280afen02