Ok.. before I start I never wrote this tutorial it was written by sicknasty413 I just thought it would be quite nice to build the tutorial section up a bit.

Supplies
Soldering Iron
Soldering Sponge
Solder (Rosin Core/.022dia)
Wire (30awg.. not used in Method 2)
3mm LED color of your choice*
Resistor*
Tri-wing Screwdriver

*In this tutorial I used a 3mm Blue LED (3.3v/30ma). I have yet to test an LED that requires 2.1v (such as Red). Assuming that the nunchuck outputs 3.3v, you'll need to use an 82ohm 1/4w resistor to properly power a 2.1v LED.

Step 1
Disassembling the nunchuck tutorial here

Step 2

Finding the solder points:
The mod will revolve around these 2 points. Notice that Red = Positive and Black = Negative.


Step 3
Bend your LED like so



Step 4
You may want to mark one of the legs or use different colored wire.
Cut off one leg and solder a wire to it like this


Then do that with the other leg.
Once you've done that.. measure out around 1-1.5in of wire and give it a snip. But prepare to trim if needed!

Step 5
Position the LED like so and solder the wires to their appropriate spots.



Step 6
Plug your nunchuck into your wiimote. Press a button..and if you've installed the LED correctly, it should light up!




Step 7
Reassembling:
Make sure your C and Z buttons are in place.
Make sure you put the analog stick back on correctly.
Place the top of the nunchuck back on.
Screw back together.

Step 8
Test once more




Finished