Where are the ignition switch wires???

I am trying to install an after market remote car starter. I need to splice into the ignition switch wiring, but I can't find them. I removed the access panel under the steering wheel and looked up to the key switch and the wiring is enclosed in metal. (theft safe) I have a diagram telling me what color of wires I am looking for, but I don't see them. ANYWHERE. I looked at every harness down there and nothing. Help please. Also will unplugging the factory theft device disable it with no side effects? Thanks in advance for any help.

I'm looking at the wiring diagram for the '97 Windstar...

If you look at connector/connection C101, you should be able to splice in right there... this puts you on the other side of the factory anti-theft controller module. The wire is white with a pink stripe, apparently. This wire leads into the transmission range sensor. HTH