Lets you connect an aftermarket receiver to the factory antenna cable. Mixes power antenna wire and regular antenna signal and sends +12V through the antenna cable to the AM booster in select vehicles. Includes a wire to connect to your new receiver's power antenna turn-on lead.
If you are installing an FM modulator, you will need this antenna adapter, plus 12040EU20.
Includes Crutchfield's 60-Day Total Satisfaction Guarantee.