Chrysler antenna adapters,For adding CD FM modulator Adapter is 6 In. in length, Fits into factory plug Factory Radio with Flat Connector to Aftermarket Antenna Function and compatible with Metra: 40-CR30 Compatible with BestKits: BAA20,BAA21 Manufactured to the Highest Quality Available , Meets the standard of excellence. Car Radio Antenna Adapter Kit compatible with Chrysler, Dodge, Ford, and Jeep 2002 & Up. What do you do to convert the vehicle's unique antenna plug to the standard DIN (Motorola) required by most aftermarket radios and modulators? Simple, you add an antenna adapter cable. That will convert the factory unique antenna plug (car side) to standard DIN plug required by most aftermarket products in need of an antenna signal. These antenna adapters are small jumper cables, usually less than 6 inches in length. And Vise versa for Female Plug. This combo pack includes two adapter cables. Antenna Adapter Kit Antenna adapters with snap lock For adding CD changer or other external device with built-in FM modulator Parts Included : 1 - Vehicle Antenna to Standard Male Motorola - 6" Long 1 - Factory Radio to Standard Female Motorola - 6" Long INSTALLATION: 1. Connect the Male Adopter to the factory unique antenna plug (car side) 2. Connect the Fe-Male Adopter to the Aftermarket Radio or FM Modulator antenna plug (Equipment side)