That's the one, For some reason ford put the ignition feed to the coil on the Body loom ( which includes the front lighting loom ) and not on the engine loom.
So one part of the connection you will find on the engine loom, and the other on the body loom. If that's the engine loom then you can just connect it to +12V while testing.
http://www.youtube.com/watch?v=0wmQZOEwR-4
1 wire to the coil feed.
1 wire to the black on the multiplugs.
1 to the starter wire.
(plus engine loom connected to battery)
TT