A:Answer Is a whole stereo. Single din fit, with a bigger screen. As far as your old step, a dash kit may be needed to change over. Some cars factory stereos use a larger area of the dash. Also check into if your car requires anything extra, such as audio for car chimes go through the stereo. That requires a separate unit, often refered to as a chime box. That allows sounds such as sweaty belt sleet and such to still process through the speakers.
