You can add your new car to your account, remove any old radios you no longer have and transfer unused service from your old car to your new one. (Certain restrictions apply). Our online service is available 24/7 and is easy to use. And you won’t lose any of your trial subscription when you transfer your service. If you need additional assistance, our dedicated Customer Care team is here to help. Just call 1-888-539-7474 or chat online with a representative.