I hope you will like the Extra Touch!
Step 1: Get all the Pieces
Step 2: Then Get the Light and motor
Put the Axle of the motor into the side of the Fiber optic unit and connect the wires to the motor , Fiber optic unit(FOS)
and , in this case, One RCX Motor port.
Step 3: Now connect the Fibers
then take the pegs and insert the Fat end of the Fibers into thepegs. The in Every other Hole , Stick the Pegs into the holes.