I believe all that I had to do was take a plastic trim tool and pop off the gloss black panel the holds the switch. Then it was as easy as unclipping the window switch and popping the new one into place. Then just pressing the whole panel back into place.
Again I'm not sure where the thread...
I'm not sure where the thread is, but you can swap in a switch with backlighting. I bought one off of eBay for less than $20. It's from an Altima. The switch is identical except the window lock button and the door lock button are back lit. Super simple install too.
