Well here is how you install a new swtich for your ION. this can be anything a flip switch or a mebrane pad, hell you can even use a house light swtich if you wanted too. lol
as you can see the button swtich is there, All you have to do is tack on some wires on to its side. like what i did. you dont even have to remove the swtich from the board. This way you can unsolder the wires if you need to repair the board or send in SP.
Then you just run long enough wires down to the pad, The Dye pad has three holes. the top hole closest to where it says DYE:
1. POS. power for the Power button.
2. Common ground for both buttons.
3. POS. Power for the Eye button.
Now the trick part is just readjusting the battery around. Also what I did is I put a small black tape over the ribbon of the membrane, this will help protect the ribbon and hide the it kinda.
When sticking the Pad down, Make sure you clean the frame up with rubbing alcohol, to remove all the oil from the surface.
This is a very straight forward thing. All plug and play..well kinda..
Good luck to everyone.
**Note** Disclaimer, I nor PBN is responsible for your actions, if you solder your fingers to the board, it is not my fault. In any case you screw up your gun. Blame your rich buddy, have him by you a new one. If thats you.. then ask your parents for a new gun and take some classes on soldering 101.