My F150 has a factory installed remote starter. Push the button on the fob, horn beeps, door locks are locked then the engine starts. For the driver to access the vehicle you must unlock the doors first. Upon entry to the truck you must insert the key into the ignition, then turn the key to the "on" position. If you should touch the brake pedal prior to inserting the key the engine shuts down. Once the engine has started it will run for approximately 12 minutes then shuts down if you don't insert the ignition key. Many safety features are built in to avoid theft. JD - You should investigate these anti theft features before your purchase. East Hamilton Radio in your area is a reliable, knowledgeable installer.