Shark Fin Antenna adapter utilizes your factory shark fin antenna installed on Toyota or Lexus vehicle. It connects already installed shark fin antenna to a Satellite radio tuner. This is the perfect way to gain all the luxuries of satellite radio without compromising the look of your car. MAKE SURE TO VERIFY COMPATIBILITY WITH YOUR CAR. Our adapters are made with the highest grade coax cable on the market to ensure the superior level of operation that the factory antenna is capable of.