This guide will show you how to mod your wiimote to flash an LED when it rumbles, this mod was inspired by M37R01D who has posted a video over on YouTube.

What you’ll need:
A Nintendo Wiimote
A Triwing Screwdriver
A 0603 LED in a colour of your choice
Copper Circuit Tape
Wire Strippers
Tweezers
Soldering Iron and Solder

This mod would fall in the intermediate level, it should take roughly 45 minutes to perform and requires a steady hand. To open the wiimote follow the first instruction found on the Player Indicator LED Mod.

Step 1:
This mod will center around the speaker holes on the upper bezel of the wiimote.

Step 2:
The LED will eventually be placed in between two rows of speaker holes on the bezel. You’ll need to cut the circuit tape length-wise in half as shown.

Step 3:
Lay two strips of the circuit tape in between the speaker holes as shown, leave a slight gap to solder the LED over. Don’t worry too much if it doesn’t stick securely, when you solder the LED it will melt a bit of the plastic and fuse it together.

Step 4:
Continue by soldering on the LED, make note of which way (polarity) the LED is soldered on.

Step 5:
Now start by routing the wire. I`ve stripped the insulation from the wire in the area that is under the speaker, so the speaker is able to sit almost as flush as it was without the wire.

Step 6:
And at last solder the wires to the two contact points of the of the rumble motor, the right most in the picture is the positive (+), and the left most is the negative (-). If you lift the PCB you`ll also see the wires for the rumble motor below, red for +, and blue for -.

Step 7:
And the rumble mod is complete! You can check out my animated gif of the LED flashing by clicking on the image below.

If you think I’ve missed explaining any steps please let me know, and I’ll see what I can do to explain it better.