All you need is two pieces of 30awg wire and a tact switch. Solder one wire from a leg of the button to the ground side of the upper right led in your controller. The led is soldered like this / You want to solder that wire to the bottom/ground side. Then to the button, the other wire you want to connect to the button, but solder the other side to the middle pin of the right trigger. If you open up your controller you will see 3 pins on top of eachother on each side, those are the right and left triggers. Thats it! Go try it, don't mess your controller up.