Abstract: An adapter plug for a vehicle's cigarette lighter socket comprising a sleeve and body insertable into the sleeve, the sleeve further comprising a first tube adapted to be coupled to a negative terminal of a vehicle electrical system, a first terminal pin disposed within the first tube, the first terminal pin adapted to be coupled to a positive terminal of a vehicle's electrical system, and means for electrically isolating the first terminal pin from the first tube the body further comprising a second tube adapted to be coupled to a negative terminal of an electrical accessory a second terminal pin disposed within the second tube, the second terminal pin adapted to be coupled to a positive terminal of an electrical accessory and means for electrically isolating the second terminal pin from the second tube means for coupling the first terminal pin to the second terminal pin; and means for coupling the body to the sleeve such that the plug is energized.