Your audio system reads and plays sound files on a USB flash drive in either MP3, WMA or AAC*1 format.
Connect your USB flash drive to the USB port, then press the MEDIA button.
*1:Only AAC format files recorded with iTunes are playable on this unit.
Honda Civic Owners Manual. How the System Activates
The system becomes ready to start searching for lane markings when all the
following conditions are met:
The vehicle is traveling between about 45 and 90 mph (72 and 145
km/h).
The vehicle is on a straight or slightly curved road.
The turn signals are off.
The b ...