See also:

Volume of spoken instructions
Turn the volume button while giving an instruction until the desired volume is set. The setting is stored for the remote control currently in use. ...

Radio
When the same radio source is selected in the front and rear (e.g., FM/AM), the same radio station is played. Operation is the same as for the front radio. ...

Selecting the sorting order of the names
Names can be displayed in a different order. 1. "My contacts" 2. Open "Options". 3. "Display: last, first name" or "Display: first, last name" ...