I think I understand this: for component video, I need three coaxial cables measured at 75 OHMs each. I've read that the Radio Shack gold series cables (the typical ryw rca ones, not the component ones) would work for this, is that true? Does Radio Shack also sell decent optical cables? And I've read that people use 75 OHM cables for subs, but would a 5? OHM audio cable work?