I've got a question on the holiday packages. If you log on over at Sirius.com you can get the Starmate 4 with Vehicle and Home Kits and save $85 if you add 3 months subscription to the cart as well. You can also get a Starmate 4 with Vehicle and Home Kits and $55 pre-paid card, but that costs more. By adding the 3 months ($38.85) that works out to a regular subscription. I called and was told the system wasn't linked, so while you'd initially see it show as $53.85 you'd actually see it show up as $35.97 (additional unit price of $6.99/mo and $15 activation). Can anybody confirm this or do I need to go the $55 card route if I'm looking to add another radio?