Alarms can be very basic or tremendously complicated. No matter the kind that's purchased, remember they have to be turned on to work especially if you are using a manual car alarm. The idea is to deter - to make your car look less eye-catching to thieves than anyone else in the lot.

There are two main types of car alarm activation methods, passive and active. Passive alarms automatically enter an armed state after the ignition is turned off and the last door is closed. Active alarms require the user to press the transmitter button to arm and disarm the system. If you set your alarm to arm passively you can probably get a discount on your insurance. For more information on car alarm systems, check out CarAlarmSystems.net.