Guys I have what Im sure is a simple setting issue that I cant seem to figure out. I have a 1022 with four speakers (FR, FL, RR, RL) hooked up to it and a sub via the LFE port and all I want to do is duplicate a 2-channel stereo source (AirPlay, SqueezeBox, etc.) to both the front left and right and the rear left and right. I have no center and this set is just for music. How can I do this? What setting does the receiver need to be in?