This antenna is functional and intended for AM/FM radio signal. This product is intended to replace the extendable portion of the antenna.The package does not consist wirings and parts required to replace your radio system. This antenna cannot replace integrated-type antennas with GPS and/or Mobile phone is not designed to receive such signals. Package contains, 1 x Aluminum Carbon Antenna, 4 x Different Size Stud bolts (Please select the correct one for your automobile), 2 x Rubber Rings. Universal fit for most car Model ( Depend on your car style, please ensure this part fits for your car style first) Item Info: .