AW: It depends on the target vehicle…. The CORE mounting kits include an FM cable adapter for the target vehicle which comes as „single version“ for the vehicles in the compatibility list. This adaptor connects the main antenna of the vehicle to the FM input of the CORE device, also for vehicles with diversity or dual antenna system. If this solution does not provide adequate reception performance, 3^rd party phantom power adapters can be deployed, such as the PMA article 204.087-0. Such twin antenna interfaces can improve the FM reception performance in critical regions by capturing the FM signal via both antennas.