Instructions
Open the larger plastic flap on the right side of the Wii. If your Wii is positioned vertically, the flap will be on the top side of the Wii. Opening this flap will expose several GameCube controller ports.
Connect the wire on your Wii Dance Mat to one of the available GameCube controller ports.
Insert your Dance Mat-compatible game into the Wii and turn your Wii on.
Begin your game and test the dance mat. Press the directions on the pad. The game should be receiving the signals sent by your pad.