If I were you, I would return that Sony AVR and get a better model which will take in audio via HDMI. Yours will not. To get audio you need to use the two optical Toslink inputs or the single S/PDIF coax input -- a total of 3 digital audio inputs, but not on HDMI.
Quote:
| Crutchfield catalog wrote:
HDMI digital video switching (2 in, 1 out) — pass-through only (a separate cable connection is required for audio) |