trouble connecting new panasonic tv to older sony receiver with hdmi to rca converter box to play tv audio through external speakers...im just not getting this. i got a hdmi to rca video converter box because the sony gx67es reciever doesnt have hdmi or the digital audio ports only rca...now im lost . ive connected everything but still cannot get tv sound through my speakers. can anyone give me a clear (and preferrably simple) diagram? quite literally i need someone to draw me a picture. thanks in advance for any and all help offered.