Ok, here is my setup:
Cable Box (Vid 1) - Comp 1, Opt 2
DVD (Video 2) - CompDVD, Coax 1
XBOX 360 (Video 3) - Comp 2, Analog (Video 3 In)
Ipod is plugged into Tape input


When I press Video 3, I get Xbox sound fine and faint Ipod sound.
When I press Video 4, I get full ipod sound.
When I press Aux, I get full ipod sound.
When I press Tape, I get nothing.
When I press video 5, I get full ipod.
When I press DVD (on 990 remote), I get full ipod.
When I press Phono, I get full ipod.

Is something weird going on here, or am I out of my mind?