Car alarm Alpine sec 8027 wiring diagram

[Ferretti]

Hi my car has an Alpine sec 8027 alarm fitted and i am looking for a wiring diagram as i want to fit central locking and conect it into the alarm to lock and unlock the doors when i arm and disarm the alarm.
Also i am having trouble locating the alarm control box (to attach wiring) i have looked under the dash behind the steering wheel and also behind the glove box.Any ideas where it may be located.
also any tips on wirig up the central locking.Thanks