Instructions
Connect the rectangular plug on the component cable into the digital A/V out port on the back of the Wii.
Connect the red plug of the component cable into the red component input of your television. Do not confuse the red component input with the standard red A/V input.
Connect the green plug of the component cable into the green component input of your television.
Connect the blue plug of the component cable into the green component input of your television.
Turn on the Wii.
Place your TV into its component video mode. This is generally done using the same method you would use to place it into regular video mode.