PAC CH1A-RSXPAC CH1A RSX Radio replacement interface for Select, Chrysler, Dodge, Jeep Scosche brand and PAC AMERICAN INTERNATIONAL BEST KIT. This product allows the replacement of your automobiles original radio with an upgraded aftermarket radio. It has been engineered to interface with the automobiles computer data bus system. It retains important safety and convenience features such as steering wheel controls and factory amplified audio systems, including