Decrease the driving force's doorway window, then lock the vehicle with the remote fob. When you have an alarm, it need to go off any time you shift around inside the car. This is probably going to get why you are now becoming asked to install a Thatcham approved monitoring https://medium.com/@trackerfit11/why-choosing-a-thatcham-tracker-strengthens-vehicle-security-6b79d8a9c256