My dedicated HT is framed and I started wiring. Ran into problem. Want to run subwoofer wire to all 4 corners of the room and terminate in a wall plate. This way I can move sub around the room for best sound. Most sub cables I have seen are two wire (red and white rca plugs). Will be very expensive if I pre-wire all four corners with this type of wire. Options that I see: 1. Run 12 gauge speaker wire to each corner. 2. Run RG-6 to each corner 3. Run regular sub cable (red and white rca ) to each corner. Question: What kind of wire do I use to pre-wire each corner so I can run sub later? Also do I get wall plate with one or two RCA plugs?