Sigh. I think I may have screwed up my homelink module. My soldering job was terrible. Pics attached, and links to really huge high quality pics too. (Just so you can see how awesome my soldering is). I really hope that's not the case....but it looks pretty bad in the pics.
In the rare event that's not what was wrong, I found 2 pink wires in that harness. I tried both, and I never could get the LED on the homelink to light up. I suppose it's possible that I didn't have it grounded well too. I just had it touching the painted part of the roof as daylight was running out.
The 2 pink wires in question:
http://strategixit.com/Camaro/IMG_1596.JPG
http://strategixit.com/Camaro/IMG_1601.JPG
My amazing soldering:
http://strategixit.com/Camaro/IMG_1606.JPG
http://strategixit.com/Camaro/IMG_1608.JPG