See also:

Before starting out on a trip
- Check that the vehicle and vehicle-tohitch mounting are in good condition. If any problems are apparent, do not tow the trailer. - Check that the vehicle sits horizontally with the trailer ...

For U.S.A
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

Volume control switch
Press the switch to the “+” side to increase the volume. Press the switch to the “−” side to reduce the volume. A number indicating the volume will be shown on the audio display. ...