OK... still don't see how this is helping. I don't want to use ANY apps to control volume. I don't want to use any apps to control Airplay at all. I put on the source on my iphone, and I "airplay it" to my receiver. I then want to control the volume using my iphone, regardless of what's on my iphone. Again... this works when Airplay is playing in Zone 1. When I Airplay something ONLY to Zone 2, I hear the audio which is great, but can't control the volume ONLY with the iphone buttons. Again... I don't want to use any apps.