I had to replace my 16 year old Pioneer Elite VSX-56TXi receiver with a Pioneer Elite VSX-LX104. I really like all the new features and having multiple HDMI connectors. My problem is that the receiver does not "see" my back speakers which are outside on the patio. The 56TXi had a simple speaker selection button to access speakers A inside or speakers B the back speakers. When accessing the speaker setup I enable zone 2 as having speakers and when it does show speakers A and B and I attempt to send audio to the B speakers and no sound is heard. I have reread the manual several times and updated the firmware and I am at a loss to find a solution. If anyone here has experience with the LX104 or other similar type receivers and could offer a solution I would greatly appreciate it. Thank you.