Installed GPS Vehicle Trackers are installed under the dashboard of a vehicle.  Installed Vehicle Trackers are ideal in situations where preventing tampering with the GPS tracking equipment is a priority.  The GPS Vehicle trackers are installed by a professional (anyone capable of installing a car stereo is qualified) using a power, ground, and ignition-based power wire.  The installation usually takes about 20-30 minutes and the vehicle tracker is active once it is connected.  Like the OBD II trackers, these GPS tracking devices are so accurate, you can know which side of a driveway your vehicle is parked on.