I have a Marantz SR7001 receiver and can't for the life of me figure out how to output video from one source, and audio from another. The manual makes a reference to Sound Injection and states to activate this feature, you first select the video source, and then the audio source. As I don't have any idea how to select an audio source, this isn't helpful. No where else in the manual is there anything more helpful in the way of a description.
Any of you with Marantz receivers out there that can help me out, it would be very much appreciated.