Instructions
Locate the small black cord and adapter that came with your Rock Band set. The black cord is only about 4 inches longer and the adapter is gray and black.
Plug the black cord into the mic. It will plug in on the hole in the bottom of the microphone.
Attach the adapter to the cord. The other end of the black cord will plug into hole on one side of the black and gray adapter piece.
Plug the adapter into the drums. The adapter has its own cord. The hole for this cord is at the front of the drums just in front of the control panel.
Plug everything in before you turn on your console. If your mic isn't plugged in before you turn the unit on, it won't register the mic.