Help, Vert top and signals stopped working

Let me start by saying that I have searched and found good info but still have not been able to solve my issue. Also, I am far from an electrical wizard so be gentle with me.

I have a 1991 Lx Convertible. A few months ago, the convertible top and turn signals stopped working. I found this diagram.

http://www.veryuseful.com/mustang/t...TopMotorCkt.gif

I checked the wiring and found that if I run a hot wire to the pink / orange wire, that the top and signals work. I have tried tracing the wire but see no issues in the wire itself. Its time to get the car inspected and I am at a loss. Please help. To recap the trouble shooting I have done:

Signals and top dont work, Hazzards do work.

A hot wire directly to the pink / orange wire makes both the top and signals work.

In the diagram it shows the pink/orange wire going to the fuse box. On my car, it runs to a plastic connector that is not connected to anything and I can not find a place where it should connect.

All fuses are in good condition.

ttt

The pink/orange wire is just connected to that plug in the pic. I have removed the fuse panel and cant see anywhere where a plug that large would connect. I have also looked under the dash and cant find anyplace where it would connect. On that plug, one of the wires is hot all of the time, the rest, including the pink/orange dont show signs of life ever. I do have a DVM