I took my car to Best Buy to have my new Sportster replay installed. The tech called me after 2 hours to say he would be unable to install it because I needed some antenna adapters that he had no idea really what they were or how to get them? Now I'm at a loss. Does this kid really know what he is talking about. Why couldn't he just use the AUX jack in the console and use the sirius antenna that came with it? Any help would be appreciated.