If you want check whether you have the OEM alarm installed in your car, you can quickly follow this install DIY and check the locations for the motion and tilt sensors. If you don't find the sensors, you do not have the alarm.
http://m3.madrussian.net/diy_alarm.shtml
Even if you don't have the alarm, you can enable the options within PA Soft and that will enable your 'clown nose' to blink when you lock the car.