See also:

How HD broadcasting works
HD Radio works similarly to conventional radio and broadcasts of this type are available in many areas of the United States. However, there are a few key differences: Instead of transmitting one ...

Disc eject
For reasons of traffic safety, an ejected disc must be removed within 12 seconds or it will be automatically drawn back into the slot. ...

Vehicle event data (Black box)
Your vehicle's driving and safety systems employ computers that monitor, and share with each other, information about your vehicle's operation. One or more of these computers may store what th ...