HELP CENTER 
How do I add my new vehicle to my existing SiriusXM account? How do I transfer my existing paid subscription from my old vehicle to my new one?
How do I add my new vehicle to my existing SiriusXM account? How do I transfer my existing paid subscription from my old vehicle to my new one?

Click here to add your new car to your account, remove any old radios you no longer have and transfer any unused service from your old car to your new one.