I can't tell from the pic, what size are is ur wire? And for this type of mod I think you went about it the wrong way, for the button leds you want it neat, and mounted on the housing, you don't want a bunch of wires hanging around that you have to cram in the psp when you put it together, you are bound to have a short, or bad connection. That's how I've always done my psp mods.
Edit:
Ya I just looked at this again, no way in @#$@ this is gonna fit together. Your wires are WAY to thick, and it seems like you modded the psp from the outside. You MIGHT be able to keep the UMD door, but you'll definitely lose ur umd function.