[QUOTE]If your 2011+ vehicle already has a Sirius antenna installed on the roof you:ll not need this antenna as all Sirius antennas that are factory installed 2011+ are considered "dual" Sirius with built-in GPS antenna reception.[QUOTE]
To the OP. Do you already have a Sirius radio? Factory Sirius radio antennas 2011 + are "nav ready". If you do not, you'll need to buy a Nav antenna also.
Me- 2012 KK, Latitude, Mineral Grey, "Cherokee" Moulding,
JBA Tommudd 3 1/2" Econolift
265/70R16 Nitto Terra's
Fuel Revolver 16X8
Rock Lizard Basket Rack
Her- 2011 WK2 Laredo X, Brilliant Black