I've searched, but I can't seem to find the wiring diagram for a 4x4 switch.
The switch I'm working on is from a 98'ish Explorer, but it looks identical to the one in my 96 Ranger, just has a blue bulb cover instead of green.

4 wires:
Black
Gray/Red
White/Lt Blue
Red/Black

I need to figure out how to test a LED indicator mod & I don't feel like testing every combination.

I'm sure Bob has this memorized by heart

Thanks