My 51 plate Fiat Brava has central locking but not remote central locking.

I have bought a kit to add the remote central locking and an alarm but I am not sure where the central locking system is in the car and which wires to connect. Can anybody help please?

Universal kit or the Meta relay replacement kit?

Meta kit: take the glovebox off and replace the yellow relay with the supplied one.

Universal one: same place or use wiring from the doors. Two wires come from the doors (whatever side controls the central locking).
Grounding one locks the doors and grounding the other one unlocks (Light blue and white wires?).
Take power from the central locking relay or hazards as they are near.

It is a universal kit with remote central locking and alarm