Comfort and Convenience
Power mirrors act on the exterior mirror glass itself: small motors behind each housing tilt the glass on its pivot, so the door-mounted switch sets the rearward view without reaching across the cabin.
Safety and Driver Assistance
A driver's airbag addresses the moment of frontal impact, when the body keeps moving forward. Inflating between the chest and the steering wheel hub, it spreads that deceleration load over a wider area.
Multimedia and Connectivity
An AUX input carries an already-decoded analogue audio signal straight to the amplifier, whereas the USB connection passes digital data the head unit itself reads and converts.