Instructions
Connect the Xbox 360 end of your Xbox 360 component cable to the port on the back of your console.
Connect the audio (red and white) ends of the component cable to the audio ports on your surround sound receiver.
Connect the other three ends of your Xbox 360 component cable to the appropriate ports on your television console.
Turn your Xbox 360, surround sound receiver, and television on. The audio from your Xbox 360 should be playing on your surround sound speakers, and the visual signal from the console should be seen on your television.