Central locking unit and wiring diagram

[Parksy87]

Hi does anyone have a wiring diagram for the central locking system and the location for the control unit? My gfs has the ir central lockin which cannot be used as the car will not enter programming mode so i am looking to replace it with an aftermarket rf unit like i did on my peugeot which i wired into the existing system. My peugeot was negatively triggered eg u close one door it closes the locking circuit and closes the rest vice versa for unlocking, any idea if its tHe same setup for the puma?

Thanks in advance
Tom