Same... bought some kind of $25 amazon optical to RCA thingy for zone 2. Has worked without issue. Using Homesharing with ALL my music + the iPad remote app for the AppleTV is really one of the greatest toys ever for me.. instant jukebox. I've been loving it for years.I use HDMI to my AVR. I also use optical into a Toslink-to-RCA converter to also connect to the AVR for Zone 2 (outside by the pool). Works great, but sure wish that AVRs could convert a digital input to stereo for multi-zone applications.