See also:

Why Safety Belts Work
When you ride in or on anything, you go as fast as it goes. Take the simplest vehicle. Suppose it is just a seat on wheels. Put someone on it. Get it up to speed. Then stop the vehicle. ...

Radio(s)
Radio with CD (MP3) shown, Radio with Six-Disc CD (MP3) similar The vehicle has one of these radios as its audio system. ...

Radio with CD (Base)
Base Radio Shown, Bose® Similar If your vehicle has the Bose® audio system, your vehicle has six Bose® amplified speakers. ...