Instructions
Insert the "Rock Band 2" wireless hub into an empty USB port on your Wii.
Insert 3 AA batteries into the back of your "Rock Band 2" guitar. Turn on your guitar by pressing the switch on the back of your guitar.
Insert the "Guitar Hero" game disc into your Wii. Use your guitar as your controller highlight the Game Channel by flipping the pick up and down to move the cursor. Press the green button on the guitar fret board to begin playing the game. The Wii recognizes your "Rock Band 2" guitar as a compatible instrument that is usable while playing "Guitar Hero" games.