AIW 9800 Pro & Tivo Problem

Hello
I have the AIW 9800 Pro for my computer. I recentley purchased a TiVo
system. I wanted to save one of the shows on the TiVo to DVD-R. I plugged
in the A/V cables from the Tivo output into the AIW input (the same way I
would a VCR). The picture came through fine when recording the tivo program
to my computer but the audio was barely audible, even when turning the
volume up all the way. I tried testing on different programs (some were
recorded with a very high volume, some low and some medium)

The audio settings on my computer were checked also, and at the time of
recording to the comp, the Line-In and all other settings were set to max.

Can anyone offer any help on how to fix this? I appreciate it if you could.

BTW: The audio is fine when I record directly from the AIW using the TV
signal or recording from a VCR, it is just the TiVo I am having trouble
with.

Thanks,
Adam