Horn
Pressaon 
the steering wheel pad
to sound the horn.
See also:
Removing the Fence
Unlock by turning both latches (A) to align with the arrow on the
adapter (B). Lift and remove the fence. ...
Air Vents
Use the air outlets located in the
center and on the side of the
instrument panel to direct the
airflow. Use the thumbwheels near
the air outlets to open or close off
the airflow.
Operation ...
Auxiliary Devices (Radio with CD/DVD and MEM)
The optional AUX input allows portable devices to be connected using the
3.5mm (1/8 in) input jack or the USB port.
Portable devices are controlled by using the menu system described in
Operation ...