How do you disarm the alarm system on a 1998 Isuzu Rodeo?

Behind the glove box on the right hand side is the anti-theft box and then just unplg it.Remove the fuse.

Removing the fuse doesn't work. The alarm still operates,only no,it operates when you are driving the car. the alarm will go off with no reason or warning. additionally, the door locks won't work to turn off the alarm, you must use the keychain