HOW TO DETERMINE IF YOUR VEHICLE IS EQUIPPED WITH A FACTORY ALARM:
(Note that just because your remote may have a PANIC button on it, does not mean it has a factory alarm)
Roll down the driver’s door window: Close all vehicle’s doors and lock the doors using the factory remote. Wait at least 1 minute then reach in through the open window and manually open the driver’s door from the inside (some vehicle’s may require pressing the power unlock switch first). If the vehicle is equipped with a factory alarm system the vehicle’s horn will start pulsing a few seconds after the driver’s door is opened.
HOW TO DETERMINE IF YOUR VEHICLE IS EQUIPPED WITH A FACTORY HOOD PIN:
Simply pull the hood release lever in the vehicle and then turn the ignition on. If your vehicle is equipped with a factory hood pin switch the dash cluster will indicate "hood ajar".