How do I disconnect the security system on a 1997 Nissan Maxima when the ignition key in the door key or different

Hello, the first question I would have Is: do you know if you have a Nissan factory equipped alarm system, or some kind of aftermarket installed system? If it is a Nissan factory equipped system, if you do not have some kind of remote control, you should still be able to deactivate an alarm by turning the driver's door key cylinder with the key to unlock. The ignition cylinder key should also deactivate the alarm. If you have an aftermarket alarm, there are various methods that depend on the manufacturer and installation. Either way, I'm not sure what role "different keys" plays into deactivating an alarm. It shouldn't make a difference from what I can tell.