I have searched around by can't find a definite answer, so hopefully I can get some help. I don't have surround sound, but I have my new Mini hooked up to my HDTV. When I got it, I forgot about audio so I looked into how I could connect it to my HDTV. I found some Toslink to Mini optical cables form Monoprice as it seemed to fit what I needed. Going from the optical audio input on my HDTV to the Mini audio in. I thought this would allow my TV to control the sound on my Mini so that I can watch movies through Plex for example with optimal sound, but I still have the normal Mini sound which isn't loud enough. After plugging the optical into the HDTV, the other mic end had the illuminating red light so I think the cables are OK. I bought a 3 and 6 foot one as I can use one with my iMac to go to my gaming mix amp if need be. Same issue with each cable. I looked at the Audio settings on my HDTV and don't see anything that I have to change, but maybe I am missing something. I am hoping I am missing something, or maybe this type of cable will not work? People that bought this cable on Monoprice said they were hooking up their Mini to their receivers via optical connection, so I thought this would work just the same. Thanks to anyone who can help me out.