Audiovox SIRCK1 Sirius Satellite Radio Car Dock with Built-In Wireless FM Transmitter Car docking station for SIRPNP1 or SIRPNP2 Sirius radio with adhesive bracket and screw holes Connects to car stereo via RCA audio cable or built-in FM transmitter Base swivels for easy adjustment Magnetic antenna for your car roof or trunk Includes cigarette lighter DC power cord