Ford: kill switch, starter wire, test light

Question
how would i install a starter kill switch in a 98 f150, which wires do i splice, from where to where?

Answer
Jay remove the lower dash panal under the steering wheel, remove the bezel ,you will see the conector to the ing. switch .look for a wtite wire with a pink tracer this is you starter wire . and just to make sure if you put a test light there and it will only light up only when you crank,