Step 1: Supplies
Step 2: Open NES Controller
Step 3: Take Apart EnV2
find the screws in the top half of the enV. theyre hidden under little rubber plugs on the side with the bigger screen. unscrew them and take off the face, which should reveal the speakers. Take the speakers out. Be careful not to ruin the speakers or wires. you only get about half an inch of wire to work with so no mistakes.
Step 4: Wiring
strip the right and left wires and twist them together.
now take the speakers and strip them if necessary. they should have 2 wires each. take one wire from each, and connect them. i just used foil and hot glue. you can solder it too.
take the 2 remaining speaker wires (one from each) and connect them to the 2 headphone jack wires.
you are done with wiring :D
Step 5: Put It Into the Controller
hot glue everything into the back of the controller, making sure everything is flat so it can close
i also glued in the jack so you can't pull it out.