2011 E90 Radio Upgrade Sirius XM ?
I have serius radio presently. I want to upgrade to a new tuner, Alpine model Do I need to buy a new sirius Adapter with the upgrade radio? Is the Sirius already connected to my shark fin already? If I have to buy a new sirius adapter, can I just connect it to the shark fin from the radio area?
Any help would be appreciated. Thank You.