Sirius Satellite Radio will be available as a factory option on some Chrysler, Dodge and Jeep vehicles. Beginning with the 2005 model year, a one-year Sirius Radio subscription and satellite radio option is $195 MSRP. The service will be offered on the following 2005 model-year vehicles:Dodge: Dakota, Durango, Ram (Quad-Cabs only; requires RAZ, RBQ, or RB4) Magnum, Caravan, Grand CaravanChrysler: 300C, Town & Country, PT Cruiser (not available on base; requires side airbags), Chrysler Pacifica Jeep: Liberty (not available on base 4-cyl. Engine package), Grand CherokeeAs an additional benefit offered to Chrysler, Dodge, and Jeep customers, there is no activation fee to initiate the service after vehicle delivery. Customers also may stream Sirius music programming over a high-speed Internet connection at their homes or offices at no additional charge.Sirius is a subscription-based satellite radio service that delivers 110 streams of digital streams of music, sports, news and entertainment programming.