The PS2 should have an optical output, I think, but if you don't use optical and just use the analog it's easy enough to do. Connect the analog audio to any video input's audio connections (the left/right for Video1, 2, 3, or 4 on the rear panel - I'll use Video3 for my example, since odds are that you have it free right now) and the component to any free component input (I'll use Component-Video2). Then go into the setup menu and go to that input's settings (Video3, for this example). Set "Audio" to "Analog" and "Video" to "Comp-Vid2". If you use optical instead of analog, just change "Analog" to whichever optical input you use.