This unit is a late model Chrysler and Jeep round faced AM FM CD upgraded with auxiliary ipod, mp3, satellite radio jack right on the face. Fully featured RBK option code part number P05064354. This radio has the new style 22-10 pin Chrysler plugs and blue display. Operation of the ipod jack is a snap just plug your accessory in and you will be listening to it through all of your car speakers. Use the volume control on the radio as you usually would. Same with the bass, treble, fader, and balance. Press the clock button and you have clock display. The aux jack has no effect on the operation of the factory cd changer, just operate it as you always did. Used in many models from 2002-2006. This radio has the new style plugs. This radio does have steering wheel control feature. Appearance is good and function is perfect. No codes required. Please Note: If you are downgrading from the CD cassette RBP, 6 Disc RBQ or navigation RB1 radio you may run into a few problems such as the radio display not working correctly, intermittent sound problems, scrambled text, and even the CD player not functioning correctly.