Thinking about trading in your car for a SiriusXM-ready vehicle just so you can enjoy your favorite satellite radio stations on the road? You can add a SiriusXM radio to your car for a tiny fraction of the price of a new car. There are three different ways to do that. There are a few aftermarket stand-alone satellite radios available. SiriusXM, the satellite radio company, makes their own stand-alone kits.