An accessory-type GPS (Global Positioning System) receiver comprises a mobile terminal side plug connector, and a cradle/hand-free side receptacle connector disposed substantially opposite thereto. The GPS receiver further comprises a power supply that receives power from a mobile terminal power charge line being operatively coupled between the mobile terminal side plug connector and the cradle/hand-free side receptacle connector. The plug connector is used to pass GPS data directly to a mobile terminal. The receptacle connector is used to pass non-GPS data to the mobile terminal via the plug connector.