USB adapter

WARNING: This page is about a different car, the 2013 Honda Fit and 2012 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

The audio system supports compressed audio files that are saved on a USB audio device and connected to the audio unit through the USB adapter.
The audio unit supports GA-Net address and commands for the USB adapter unit (without navigation).
When the USB device with audio files is connected to the USB adapter, you can select and play the music files using the audio unit controls.
The audio or audio-navigation unit powers the USB audio device through the USB adapter.
Connect the USB audio device using the USB adapter cable located in the glove box (see Owner's Manual).
NOTE: Not all players and player functions work with the USB adapter. See the Owner's Manual for more information.

Fig 1: USB Adapter Communication Diagram (Audio)
Courtesy of AMERICAN HONDA MOTOR CO., INC.