VP immobilser arm disarm wires

[holster]

Hi i have a problem with my VP exec with factory alarm.
I want to fit an aftermarket alarm and it has wires to use on existing factory alarm arm/disarm.
I need to know which are the arm/disarm wires and were they are located.
My security disable lock in the pillar has had the wires removed and are not located in the door jamb.
It is not the original barrel in the door jamb as it has screws not rivets holding it in.
I don't have the key so took it out to look and discovered no wires running to it.
So someone has removed the wires and bypassed it somewhere.
Can anyone help?

Thanks

 

[markovr]

does this help
factory diagram for immobiliser
basically the key operated switch has 2 sets of contacts and they connect /take away power to the ecm and the immobiliser
so in one position contacts S59A on orange and orange/black wires connecting immobiliser are made and the ecm fed contacts S59B on pink/black are open and when turned the other way the contacts are open/fed the other way.

mongoose wiring for vp

 

[holster]

Thanks markovr appreciate it very much.