It's possible the yellow wire goes to ignition switch? I hate to keep listing possibilities, but, check it out if you haven't found it already.
Your post just stuck in my mind. I hate to give up.
From the ignition switch it goes to crank fuse, from crank fuse, one circuit goes to neutral switch/tranny range sensor.
If I finally got it correct, sorry it took so long.
Monday, October 20th, 2014 AT 10:12 AM