Selecting trailer ball
Use the correct trailer ball for your application.

1. Trailer ball load rating
Matches or exceeds the gross trailer weight rating of the trailer.
2. Ball diameter
Matches the size of the trailer cou- pler. Most couplers are stamped with the required trailer ball size.

3. Shank length
Protrudes beyond the bottom of the lock washer and nut by at least 2 threads.
4. Shank diameter
Matches the ball mount hole diam- eter size.
See also:
Switching the display
Press the “TEXT� button.
Each time the button is pressed, the display changes in the following order:
Elapsed time → Folder name → File name → Album title (MP3 only) → Tr ...
Voice settings
Voice guidance can be set.
1 Press the “SETUP� button.
2 Touch “Voice�.
3 Touch the items to be set.
4 Touch “Save�.
SCREEN FOR VOICE
SETTINGS
•On this screen, the follo ...
Turning the Automatic Sound Levelizer (ASL) on/off
Turning the “TUNE/SEL� knob clockwise turns on the ASL, and turning the “TUNE/SEL�
knob counterclockwise turns off the ASL.
ASL automatically adjusts the volume and tone quality according t ...
