Just purchased and I can't get any sound on my xbox.

Everything is plugged in and I updated the firmware through my macbook prior and put it back to console mode. NO SOUND PLEASE HELP.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0