Nope. Siruis and XM are also separate accounts. Two cars and a home unit run me about $600 a year. Maybe this will change if people complain enough.
Radio that can be easily moved from vehicle to vehicle is a big money saver.
I keep the antenna inside the vehicle, and attached to the radio, unplug from 12v and make the move.
Use the same system in the house, antenna works through the ceiling and the roof.
$600? You can buy the company for a buck fifty.