I'm not familiar with your Pioneer, but most recievers will have a tape out or record. This should give you a fixed output which you can then plug into an input on the Yamaha and control with the Yamaha.
thanks for all of the responses I've tried them all and had a modicum of success, I can get sound from the tuner to the other rooms but not from the dvd player which is a 47ai elite player. I even connected the 2 channel out to the Yamaha and no dice. btw I am conneccted from the dvd to rvcr via a firewire cable
Eureka the Eagle has landed. I finally figured it out.
I had to also hook up the 5.1 analogs from the dvd to the rcvr. Then I ran 2 rca's from the players 2ch out to the second rcvr's
vcr inputs then when playing back sacd's I have to use the analog multi channel in instead of the digital firewire inputs. Then I ran another set of rca's from the vcr out of the main rcvr to the "cd in" on the second rcvr and that handles the tuner or anything else coming through the main amp. Yeah