need ngpc ext port pinout

Hi does anyone know the neo geo pocket color's EXT port pinout? I am going to sniff around with a multimeter but I won't be able to gather much as far as logic vs voltage per say. I'm trying to add an led usb light with an extendible arm to rewire it to the port. It's just an idea now but if i can source a pinout it would be helpful

If I were you I'd just open it up. You would also need a light source with at least 2 leds to reduce spotlight effect. One good way to disperse the light is by shaving the focus down from the top of the led.

yea looks like i'm going to have to open it up. Might as well just follow your guide and do the real mod, what the heck. I'll re-read your pdf guide and get to work, just would have been cool since a usb plug is almost an exact fit in the ext port with just alittle bending on two edges...