2000 lincoln towncar factory alarm disarm

 I have found out that the fact. disarm wire color is a dark GREEN/ purple.I have probed all of the dark green wires and have found no wire of sort.GM autos tell you the color of wires and going to a modeul,for the disarm wire. Has ford got a disarm moduel that the wires run to for I can;t seem to find the wire with a -neg. volt. the manual that came with the remotestarter says that the -neg. will show with the key in the door will show -neg. when the key is turned to the unlock position. Would there be any other way to find this wire so that the remote starter will work? Thank You rheinz2

I am pretty sure the factory disarm is the same wire are the door unlock wire, pink/light green. Arm is pink / YELLOW, which is also the lock wire. Both can be found at the driver's kick panel and they switch positive and not negative.

i dont remember 2000 town cars having a factory perimeter alarm its been a while since ive done one does the car have a factory hood pin switch ?If i Can't Install it    I Don't need it   Joe