Hello, I plan on hooking my 105 to my Marantz via HDMI into the BD input and 5.1 Analog from the Oppo to the Marantz. my question is how do i switch fro one audio source to another. For example if i watch a blur ray i want to take advantage of the room correction on the Marantz(HDMI). If i want to listen to a SACD, I'd like to utilize the 5.1 analog from the Oppo. Thanks in advance.