2004 brought optional Sirius Satellite Radio and an optional stereo with DVD-based GPS navigation. For the 2004 model year, Chrysler offered the Platinum Series 300M to coincide with the company's 20th anniversary of Chrysler's original minivan (Dodge Caravan/Chrysler Town & County/Plymouth Voyager). In addition to the 300M, five other vehicles were offered as Platinum Series: the Sebring Convertible, PT Cruiser, Sebring Sedan, Sebring Coupe, and Town & Country. The Platinum Series 300M was available only in three exterior colors: Graphite Metallic, Bright Silver Metallic, or Brilliant Black Crystal. Other features included: deep slate/light taupe two-tone interior, chrome door handles, deep gloss black turn signal mirrors with a reverse gear auto pivot feature, and 17-inch chrome wheels. A 360-watt Infinity II Cassette/CD player, and a no-charge SIRIUS satellite radio system with a one-year SIRIUS subscription were also included. Additional features include leather seats, satin silver bezels, chrome or platinum clad wheels, and other unique interior features. These models have a special Platinum Series badging on the C pillars.