2002 Ford F-150, Viper 791XV Alarm/Remote Start

thanks dea,can for that file. it is a graet file. where did you get it? im going to print it out and put it in a binder for reference. and thanks jimmy you were right.  sorry i didnt trust you bc of your status.

now i just need a sunny day to do the work.

ok i need to find my second accessory wire in a 02 f-150 to power it up for my remote start. i have 2 different sites for a vehicle wiring diagram and one tells me one thing and another tells me another thing. one says my accessory wire is RED / black and that the gray / YELLOW is 2nd ignition. the other one says my accessory wire is gray / YELLOW and my 2nd ignition is RED / black. both say my 2nd accessory is BLACK/ green. the BLACK/ green wire is hooked up to my remote start right now. and when i test the gray / YELLOW wire and the RED / black wire both have 0v when key is at accessory and when truck is off. when i go to start both get 12v. when i crank the truck they both go to 0v. and when its started they are up to 14v. so both the gray / YELLOW and the RED / black wires are doing the same thing but both are suppose to be different. so i need help with this. im confused. i tested all my other wires and they are working like they should and go along with both wire diagrams. the only difference between the wire diagrams is what i said above. so i need help to figure this out. thanks 

so do i just power up my accessory that is already going to the remote start? shouldnt i have 2 wires that are accessory and act the same?

please help

It's difficult to categorize those two wires because they are neither the traditional ACC nor IGN.

As a general rule of thumb, we call an ACC whatever has no voltage during crank and IGN does have voltage during crank.