See also:

What is an Onboard Diagnostic System (OBD II)?
OBD II is part of your vehicle's computerized engine management system. It stores diagnostic information about your vehicle's emission controls. It can light the Check Engine light (MIL) if it ...

Audio volume and automatic volume control
The infotainment system compensates for disrupting noises in the passenger compartment by increasing the volume according to the speed of the vehicle. The level of sound compensation can be se ...

Listening to satellite radio
The Sirius satellite system consists of a number of high elevation satellites in geosynchronous orbit. NOTE The digital signals from the Sirius satellites are line-of-sight, which means ...