If you are replacing the factory antenna in your vehicle this antenna cable adapter ensures that you can continue to use your original factory radio. It is a simple yet necessary cable that adapts the aftermarket antenna cable to plug into the vehicles factory radio with a female Motorola connector on one end and a male Lexus-style antenna connector on the other.adapt the vehicles original factory radio to use with an aftermarket antennFemale Motorola connector on one endMale Lexus-style antenna connector on the other endAntenna adapter cable Family