| Option A | 
| POWER button( )/VOLUME button(VOL)/TUNE button (if equipped) | Turn on or off the Media.Press and hold to turn off the screen and sound.Adjust the system volume.While listening to the radio, adjust the frequency or change the station.While playing media, scan music or files.During scanning, select the current station, music or file.
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| Option B | 
| POWER button(PWR)/VOLUME button(VOL) (if equipped) | Turn on or off the Media.Press and hold to turn off the screen and sound.Adjust the system volume.
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| HOME button | Go to the Home screen.Press and hold to turn on or off the Quick control function.
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| MAP button | When phone projection is not connected: Display the phone-projection connection window.When phone projection is connected: Display the map screen connected by phone projection. (The button's operation may vary depending on smartphone specifications.)
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| SEARCH button | Displays the Search screen.
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| SEEK/TRACK button ( /  ) | While listening to the radio, change the station.While playing media, change the track/file.
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| MEDIA button | Runs the connected media.Press and hold to display the Media Home screen.
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| Custom button ( ) | Runs the user-defined function.Press and hold to display the function settings screen.
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| SETUP button | Displays the Settings screen.Press and hold to display the version information screen.
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| TUNE button (TUNE/FILE) | While listening to the radio, adjust the frequency or change the station.While playing media, scan music or files.During scanning, select the current station, music or file.
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| System Reset button |  |