My house is hardwired in each bedroom/living room with coaxial output connections, which lead outside to the satelite dish. Presently 3 rooms are not connected so the cable just sits there disconnected, how can I go about setting up an extra room in terms of the cabling? Presently 3 of the 6 cable outputs are configured and working....I can provide more detail if need be, just curious as to if adding a splitter to one of the lines is all i need to do, or if its more involved. thanks in advance