E-Kylin Auto Inline Antenna ISO DIN Radio FM & AM Stereo Signal Amp Amplifier Booster Cable (Coax Male to Female) w/Power Input Standard Car Radio Plug and Socket ( Coax Male & Female Ends ). Simply connect it inline with your current antenna. The blue lead is for connection to constant 12V + to strenghthen signals 35CM /13 Inch. Works for both AM and FM radio stations Please carefully take a look at your current radio antenna connection. Some models maybe different from this one. Decent radio signal booster. Get your favorite radio station without static! To buy great value Radio/TV Antennas, please search ASIN code: B01CFKU6WO