The Audiovox Xpress XMC10A kit lets you swap your Audiovox Xpress XM plug-and-play radio quickly from one vehicle to another. Install the car kit that came with your Xpress radio in your primary vehicle, then add this kit to your spouse’s car, an RV, or any other vehicle in your garage.The Xpress car kit comes with everything you need to use your XM radio in a second vehicle — a docking station, an antenna, and a power adapter. You can connect directly to your car’s antenna with the included XM SureConnect cable*, or use the cassette adapter to send sound to your vehicle’s speakers. If your car stereo has an auxiliary input, you can use the Xpress’s line output to make a direct audio connection. And the docking station features an auxiliary input that lets you connect and play a portable device, like your MP3 player.