Vehicle antenna with anti-theft feature

An antenna for a vehicle of the type having a threaded antenna aperture traversing a body of the vehicle, the antenna comprising:

• an elongated body having a top end, a bottom end, and at least one peripheral side, the bottom end having an axial bore partially through the body and adapted to receive an antenna wire within, the axial bore having threads at the bottom end extending upward at least partially through the axial bore, a conductive threaded shaft threaded partially into the axial bore such that a bottom end projects out of the axial bore, the bottom end of the conductive threaded shaft adapted for threading into the threaded antenna aperture of the vehicle;
• a first groove formed around the at least one peripheral side of the body, the first groove having a back wall that is substantially circular in cross-section except for two opposing parallel sides adapted for contacting two opposing sides of a wrench having a thickness smaller than the width of the first groove;
• whereby with the conductive threaded shaft screwed into the threaded antenna aperture of the vehicle and with the body tightened by rotating the body with the wrench at the first groove, the antenna wire is electrically connected with the threaded antenna aperture of the vehicle.