Dome light wire for alarm??

I am about to install my Viper alarm in my 93 B2200....I have noticed that no one seems to show a dome light wire for our trucks, I have both the Techsoft and the12volt.com wire diagrams.....anyone know of a direct wire for this? Or does it require some customization?

ok, what wire exactly? is it the one for trigger the alarm when the door is opened? or u want the dome light to turn on after you disarm the alarm?