THIS IS NOT MY TUTORIAL I WILL B BRING MY OWN OUT WHEN I GET THE TIME!!!
Parts Needed * 30 Gauge Kynar wire
* 2x 0603 LED’s
* 1x 10-ohm Resistor
* Flux
* Solder
Tools Needed
* Hot glue gun
* Soldering Iron
* Intermediate soldering and PSP disassembly skills
Step By Step Tutorial1- This is the wiring schematic for the trigger mod.

2- PREPAIR THE LED’s, SHOULDER BUTTONS, AND POWERBOARD
The first thing to do is cut 2x lengths of wire, one for the positive, and one for the negative, now tie a knot close to one of the ends of each. The knots have two reasons, they act as heat sinks between the two ends, so the solder on the opposite end won’t heat up when you are soldering on the other end, and it helps hold the wires, keeping them from being pulled from their solder points.
Here you see a detailed picture on where to solder your Wires to.

3- And this is how it will look soldered.

4- Noticed how I routed the wires in this picture. Once the wires are tied slip them through the same hole. This picture also shows the points on the power board, you will have to solder to. Notice how I scraped the paint on the supply trace; it’s much easier than trying to solder to those small through-holes, to the left, this is where the positive wire gets soldered. You can also see the point where the negative wire gets soldered. Next, cut the positive wire to a manageable length, and solder the 1x 10-ohm Resistor to it. Alternative: The Resistor may also be soldered directly to the positive contact point.
To prepare the LED’s, solder 1x length of wire to each of the positive and negative sides of the LED’s.
Next, drill the shoulder buttons.
4dp's picture i could not find any good pictures hope you dont mind

5- As you can see, the place I drilled the holes is on the bottom of the button, at the bend, as it is marked here were the glue gun tip is.

6- Use a 3/16” drill bit for the right size.
Slide the LED’s into the holes on the shoulder buttons, and dab a drop of hot glue, into the hole, to seal the LED’s in. This also gives it some structural integrity, just as the knots in the wire did.
7- ASSEMBLE THE COMPONENTS AND TEST
Solder each of the positive LED wires to the Resistor, and each of the negative wires to the wire attached to the ground point on the power board.

Now would be a good time to test it all out, so you don’t have to take it all apart again, if something went wrong.
8- REASSEMBLE THE PSP AND ENJOY