I installed this in my Arcade 1UP Street Fighter 2 case, much better than the original. The sanwa is 5 pin so you need to figure out which wire to connect it to, hope my photo helps. If you mount it in the same direction as mine then: Black = Earth. Yellow = up. Green = Down. Orange = Correct. Red = Left. You only need one ground wire, so remove the other three useless ground wires.