02 WRX, security upgrade.

Is there a way to change the warning chirp (when something hits your car but without enough force to set off the alarm proper) from one chirp to 2-4? I live in an apt next to a busy street, and I hear single horn chirps go off all the time - it's very hard to tell whether this was my alarm warning, someone else's, or just a car on the street.

Thanks!
Kenn