727 trans neutral Switch plug ( help please )

Hi Gang
Iam in the middle of wirering up my street rod truck and need a diagram of the 3 prong plug on the trany for neutral switch or is it for reverse lights as well? anybody got a wire diagram that I can go by to wire this thing up (THANKS)

Out side prongs back up lights and center N safety switch wire. Back up light is in one side out the other so that when in reverse the connection is complete. The center to the prong on the starter relay. It is in essense completing a ground when the detent is in the reverse position.

Ok Thanks A million