96 Ford Bronco

I'm trying to find the "trunk output" on my factory keyless entry.  I recently bought the bronco and discovered it had factory keyless entry.  So on a hunch I bought a key fob for a car off of e-bay, and sure enough when I hit the trunk button the dome light cuts on and I can hear a relay click for the trunk.  I did this hoping to install a window module that will roll down my rear window when the trunk button is pressed.  I saw the wire code for a ford car and it states that a purple / YELLOW wire would go to the trunk. But I checked my keyless entry and there is no purple / YELLOW wire.

There seems to be a few pins left empty on the plugs going into the factory keyless entry, I'm guessing one of these is the actual power trunk output.  So my question is, sense I have no power trunk wire what pin on the ford car keyless entry would the purple / YELLOW wire have been on?  If someone could give me a picture or even tell me what color wire it would be next too.

I would also like to know what to use to trigger this power window module I ordered.  I'm not sure to supply it with a (-) or (+) trigger, it only says 500ma activation.

Thanks,  Chad