Hello any updates on this issue??? I too have the p4100dvd with the CD-IU200V cable . When I play a video such as youtube on my iphone, I can hear it on the ipod input and see it on the AUX1 input but never both. When I go to initial setup and set AUX1 to ipod, the AUX1 source in my source menu is disabled. Im not sure if anyone has a fix for this. Please let me know.