This cable has worked well with my wife's 2011 air for ouputing audio and video through our Onkyo receiver: http://www.amazon.co.uk/KanaaN-Mini-DisplayPort-1080p-Cable/dp/B004M1PI6E/ref=cm_cr_pr_product_top However, I can't get it to work on my new 2013 Air. My Air's display will flash like other Air's do when you plug in a cable, or power on a receiver connected by cable to my Mac. But I can't see external speakers in System Prefs/Audio/Output. An no sound outputs. Both my wife's Air and mine are Thunderbolt so can anyone think of a reason for why this would work on hers and not on my 2013 Haswell air? Thanks.