Can I use another 2-way Directv splitter to add an additional coax cable in a added room? There's currently 1 SWM splitter in conjunction with a SWM 16 that's on the outside house I think it's a SWM 8-way that's connected to 4 receivers, with the other available ports terminated. In one room there's two coax lines interconnected with each other, with the 2nd other end of that coax into the next room, but someone disconnected the one end of the main point cable(in 1 room) and hooked it up to the hd box, leaving the other cable(2nd room)unused, wondering if a 2-way splitter works in that situation.