I'm using an APPLE, A1305 adapter to carry AUDIO AND VIDEO from my mid-2010, 6.1, Mac Book Pro 17" laptop to my 2014, 65LA9650, LG HDMI TV..? I am using a Rocketfish HDMI Cable Adapter hooked to the A1305 and going over to an HDMI Input on the LG TV. The TV only has 2 ports besides it's 3 HDMI and 2 USB ports. One input port for AV and one for component. No others. How can I get the sound from my Mac Book Pro to my new, LG TV..? Display is fine, just no sound coming over the HDMI Cable..?? My MBPro has two outputs for sound as well. One is for speakers and one is for headphones. Thanks...