Clarion NX501A Owner's Manual page 155

Please be patient while the Naviextras Toolbox is installed.
If you checked the "I would like to start Toolbox now." option, Toolbox will start automatically
after installation.
Toolbox has an Auto Update feature, which prompts you to upgrade it at every startup if there
is a newer version available. If you choose to upgrade, you will go through the same installation
procedure again as described above.
Please note that you must have administrator privileges on your computer to be able to update
the software. If you are notified about an update without the possibility of performing it, please
contact your network administrator.
For advanced users or network administrators, it is also possible to download Naviextras
Toolbox and install it silently from the command line. To do that, type 'Toolbox_Setup.exe /S'.
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