See also:

Tires and wheels
...

Registering a portable player
Select “Pair Audio Player (Pair Audio)” using a voice command or the “TUNE/SEL” knob, and perform the procedure for registering a portable player. ...

Map scale
Touch or to change the scale of the map display. The scale bar and indicator at the bottom of the screen indicates the map scale menu. The scale range is 150 feet (50 m) to 250 miles (400 km) ...