1.Allows your OBD-II port to remain available for diagnostic use.

2.Allows remote mounting of the Vehicle GPS tracking device unit when the OBD-II port is in a location that may interfere with the driver.

3.Simply plug the Vehicle GPS tracking device unit into one end of the Y cable, plug the middle connector of the cable into your existing OBD-II port and the other end of the cable becomes your new OBD-II port.