piezo alarm chirp

I'm in the phase of installing a piezo into my alarm system for some extra security. I also bought a 515r siren. 2 questions, 1)will the piezo go off when my car chirps to the keyless entry arm/disarm sound 2) is there anyway I can make the piezo go off only when the alarm goes off by opening the doors, Its one of those alarms that tells u when the doors open, or some kind of timer thing to make it not sound all the time but when it's needed Also my viper 350 has a horn connection that's not connected yett, it has an output for the siren that's already put on, was wondering if it goes off with the chirp, maybe to solve my problems :) Want things done, get it done yourself

Similar situation I used the pulsing horn out and added a pulse to constant circuit to keep it steady for a siren. You can set the horn wire to only activate on full trigger