Just to expand on the steering wheel left hand volume control wheel--note that it is 'context sensitive'. If you are listening to audio and roll it up or down, you adjust the audio volume. If the nav is speaking and you roll the wheel, you adjust the nav volume (and in the left side of the instrument panel you will see this). if you are on a Bluetooth hands free phone call and roll the wheel, you adjust the volume of the call. Elegant.