See also:

Immobilizer
The immobilizer system is designed to prevent an unauthorized person from starting the engine. Only keys registered with your vehicle’s immobilizer system can be used to operate your vehicle. Even ...

How to insert a CD (type A)
While the ignition switch is in the “Acc” or “ON” position, hold a disc with a finger in the center hole while gripping the edge of the disc, then insert it in to the slot (with the label side up) ...

ON
This is the normal operating position after the engine is started. ...