Auxiliary connector box allows you to use your 75 WX ST compact remote mount CB radio in multiple vehicles... even in your boat. Mount your Cobra AC-701 connector box in a convenient location, away from moisture and direct sunlight, in a location that will not interfere with driving. Cobra suggests mounting it either under the front seat or on the fire wall. Note: Do not mount under the hood, near heat ducts or in direct line of the car's heater.