Audio system

Audio system  - Monitor, climate, audio, phone and voice recognition systems - Infiniti QX Owners Manual - Infiniti QX

See also:

Bluetooth Hands-Free Phone System (models without navigation system) (if so equipped)
WARNING Use a phone after stopping your vehicle in a safe location. If you have to use a phone while driving, exercise extreme caution at all times so full attention may be given to vehicle operati ...

INFINITI Vehicle Immobilizer System keys
You can only drive your vehicle using the master or valet keys which are registered to the INFINITI Vehicle Immobilizer System components in your vehicle. These keys have a transponder chip in the key ...

4 Wheel Active Steer (4WAS) system (if so equipped)
The 4 Wheel Active Steer (4WAS) system is an electronically controlled four-wheel steering system. Depending on the vehicle speed and steering angle, the angles of the front and rear wheels are adjus ...