Immobilisor Switch

[springersrolla]

hey lads, car almost got stolen last night , they f@$ked the barrel so I'm sitting here with it in my hand and i have the loom it says, : AM,ST1, ACC, 16,ST2 on the back of the barrel, question is how should i wire the ignition so i can control it by a switch, should i use the coil wire, or split a wire from the ignition to the switch?? whos had luck with what I'm pretty determined to prevent the car getting taken, or the switch being found, a mate used to run a pressure switch in the floor pan near the foot rest, hold it in when u turn to start to open the circuit, shit like that, any one who can decipher the 5 wires on the back would be a big help cheers,