2002 taurus 26 pin plug at gem?

Hello. I was wondering if someone could verify that the "26 pin plug at GEM" (mentioned by the wiring diagrams) is the white plug on the bottom of the GEM unit with all small wires? The pink/white (-) wire is mentioned to be the alarm disarm wire for this vehicle. Is there anyway to test that I have the right wire before hooking up a remote start? Thanks for all your help.

The pink/white (-) disarm can also be found at the drivers kick panel, coming in from drivers door. Either one will work. to test it, put the key in the drivers door key cylinder. Test the wire while turning the key back and forth from lock to unlock. The wire will show (-) when the key is turned to the unlock position. 

Thanks.