Unfortunately with the xbox it's digital or analog connections, not both. If you use the factory connector, you only get analog audio and video (it's a proprietary rig where there are not RCA connectors on the xbox. It's a wide, single connector into the xbox, then split into red, white, yellow on the other end.)
I purchased a high-def connector which gives me composite or s-video, and optical digital which I'm using today.
I suppose could go back to the facttory connector with just the analog connection. The high def video doesn't mean much to me, but losing the digital signal will suck.
I'm beginning to think putting the outside speakers on the B selector the only good option left .
Thanks for the feedback!