If your looking for a different chirp, DEI makes a voice module. The module has an english and japanese setting. It says something like the alarm is arming or "this alarm has been deactived." In the japanese setting when the alarm physically goes off it sound like one of the taliban going on a war rampage. Its pretty crazy.

Any good shop should have a Bitriter for customizing the alarm features. The bitriter just gives you a bunch of readable options that make the alarm easier to program. If the guy at the shop is a good installer, he should know all the programming options by heart. This bitriter works with the full DEI line.(Hornet, Avital, Clifford, Viper....and so on.)