GM factory arming

2002 Buick Rondevouz, 2000 Impala, 1997 Grand Prix

need to find the factory "Arm" wires........Anyone?

I,m not quite sure since i never really tried it, but I noticed if you lock it with the door open once you will hear a beep, then lock it a second time then it will lock doors and set factory alarm. So if you can make a set up with a timer and a double pulse module, to make it look as if the door were open while locking and second pulde will lock and set factory alrm. I guess it would work , but then agin seem like a lot work to me.these applis to all three cars.   

Tried that already...

it seems that all the tech sites i go to, none list the Arm wire for these three cars