Switching between letters and numbers
Depending on the menu, you can switch between entering letters and numbers:

See also:
2012 BMW 650 review
One of the greatest leaps in automotive progress this past decade has been
the taming of the convertible. Once requiring a tradeoff — open-air enjoyment
versus performance and year-round comfort — ...
HD Radio™ reception
Many stations broadcast both analog and digital
signals.
License conditions
HD Radio™ technology manufactured under license
from iBiquity Digital Corp. U. S. and Foreign
Patents. HD Radio™ an ...
Controls at a glance
Controls
1. Control Display
2. Controller with buttons
You can use the buttons to open the menus directly. The controller can be used to
select the menu items and create settings.
...
