Just bought a MH with sat dish and sat receiver already in the MH, just connected my TV as there wasn't one in the van already. Anyway couldn't get the sat to work so spoke to previous owner who said I had to connect the tv to a box on the wall.....the box had 3 outlets on with Yellow White and Red mI believe that the other end of this cable fits into the spdif socket(Whatever that is)....Ive never come across this before and was wondering if anybody has experience, I haven't got a cable so will have to buy on. Any help appreciated Hope this makes sense