mazda 323 2.0i v6 immobilliser

hi ya, i just bought the mazda 323 yesterday, it has a cat one alarm and immobilliser but i dont know how to use the controller. i dont know how you turn off the immobilliser. the controller has a green button and black. do i need to press green twice or do i put the ignition on for a bit. it is so embarressing and annoying,