Hi,im looking to install a magic eye in our new extension we have sky hd in our tv room(the tv we use most) and another sky box(not HD) in another room(wich we hardly use). Am i correct in saying i need to run a coax from our HD box to our extension and follow the instructions with the magic eye? If so what kind of coax should i be using? tThe cable run is no more than 10 metres. Thanks in advance.