Neutral safety switch
 

OK folks I have a 1966 Chevelle and a new American Wiring harness with two purple a pink and I think its a green wire with a four plug type setup on the neutral switch. Question is, which wire goes to what? It is a automatic tranny on the column. Thanks

The two purples are your neutral safety switch and the other 2 should be the reverse lights.

http://i777.photobucket.com/albums/y...-18_095033.png

I posted this same wiring diagram in this post for you.
http://chevelleforum.org/showthread.php?t=2306