Awesome write up!
There are 2 ways (that I saw) to fish the wire to the glove box. I was using a "prototype" harness that is a tad shorter than what he's building now, which is why I ran it along the media bin sliding cover as he showed above (the red line).
This requires snaking it around a...
Definitely not the most fun thing in the world to fish the glove box wire, but very much doable (and the current harnesses will have a bit of extra wire to help make it easier).
The easiest way is going roughly where the red line is on my first image; the trick being finding the bottom of the...
Have either your or @Hackintoshihope found part numbers on the glove box/media bin? Seems like it would make sense to put the lights back in at the same time as the cupholder... While everything is opened up.