2002 VRS aftermarket alarm

My apologies if this is already on a thread..... if it is and someone could point me in the right direction, id be most grateful

I have recently bought a 2002 vrs and am looking to put an after market alarm system on.

Does anyone have the wiring diagrams / locations for the central locking on the car please. Ive gound some of my old bits for a 99MY but the colours are all different. Also, whether or not it is positive or negative pulsed? I would ideally like to do total closure off the alarm (why that wasn't standard :0(   ) Ive had a prod around a bit today but didn't want to damage anything.....

Any help would be appreciated.

Cheers

Ian