I would buy an actual component video cable. Video cable spec is 75Ohms, while for audio it may or may not be. For audio, it is less important, but for video, if the cable is not 75 Ohm, it will be an issue. You don't need to spend top dollar, check out Blue Jeans (see sig): their component cable is easily the best I've ever used and it doesn't cost a lot at all.