ShopHDE has the RCA Audio Cable Adapter for Microsoft Xbox 360 for $9 - $3 off with coupon code bentqqxf9j
[100 uses] + $3 shipping = $6 shipped
. Allows HDMI video to be routed to the HDTV with the audio routed separately to the home theater system. Shipping is from U.S. and $3 for all orders.