Does anyone know if it is possible to watch a video source while listening to another source? Here is my specific scenario. I like to listen to my sirius radio which is connected to AV-1. The thing that sucks about this is that the screen is just black (no video). Is it possible to still listen to my sirius on AV-1 and view a video input from, say, my video ipod?? Or is it possible to at least view a background image??