OK so finally figured out the power and ground wires......
This is a DIY mod for you wrx window switch....(Do At Own Risk)
Tools and supplies:
soldering iron and solder
small guage wire
tape or glue
very small drill
2 small wire taps
3....1.7volt 20mA 3000mcd leds
1....resistor 1/4watt 470ohm
start by unscrewing screw in grip on door....will be covered need flat head to pop open
next unplug both connections top and bottom
ok now unscrew the 3 screws holding it down....theres one at the top and two at the bottom
next use flat head to pop out the circuit board....wedge it between the black plastic and whitish clear area....
after poped out i painted the original bulbs on the circuit board....this will be the green side....
next sand down the leds to a cloudy texture....
next mark up the led to know which prong is the neg and which is the positive....the shorter one is the negitive prong
now drill small holes into the switches side....if you dont understand look below at the pictures...the leds go through the small holes
now start soldering them together.....negative to positive...negative to postive...in a series....u can glue them down but i had some issues doing that....i tried crazy glue
now start soldering them together on the other side....
now solder the resistor onto the negative wire comming off the last led
clean it up and make sure the wires from the positive side and negative side are around 6 inches
ok now use the wire taps to connect to power source and ground....
connect the negative wire to the black wire......the power wire to the green wire wire with the black stripe
this is it being tested with a 9 volt battery
(DO AT OWN RISK. I AM NOT RESPONSIBLE FOR YOUR CAR)