you need the 5.1 channel connection from the dvd to the reciever using regular RCA patch cables to utilize sacd and dvd-a

You also need to use either digital coax or toslink (i like coax much better) for digital sound off the dvd's this will go from your dvdp to the reciever

You also need either component video or HDMI for video. you can either use the reciever for video switching or connect these directly to the tv

Haoleb's Audio/DIY Website