I'm going to be installing an RF Modulator with my new Delphi unit at I've discovered that the antenna connections are different on the FM modulator than what is on the radio and car. Is there a good place I can get the necessary adapters to get the FM modulator to work? I have a 2001 Ford Focus. I haven't checked the Ford dealer yet but I wanted to check here first to find out if anyone had a cheaper source to get the adapters. Thanks!