need info on the 9EJS1 Zenith Cbox2 front panel audio conn..

I would like to use the two audio jacks in my Cbox2 and I know that the
mboard has the cable connector needed for that, but it can only be used with
the mboard's onboard audio chip. I would like to use those two jacks with my
Audigy 2 sound card. I've tried to figure out which pins to connect with the
Audigy line in internal connector for example, but the closest I got to was
monophonic sound...If anyone can help me out, please do.