2010 Honda Civic Owner's Manual - Page 226

Remote Audio Controls, Auxiliary Input Jack In MP3 or WMA mode, you can use the seek function to select folders. Press and hold the top ( ) of the CH button until you hear a beep to skip forward to the first file of the next folder. Press the bottom ( ) to skip backward to the previous folder. If you are playing a USB flash memory device or iPod with the USB adapter cable (if equipped), press and release the top ( ) of the CH button to skip forward to the beginning of the next file. Press the bottom ( ) to skip backward to the beginning of the current file. Press it twice to return to the previous file. When playing a USB flash memory device, you can also use the seek function to skip the folder. To activate this, press and hold either side of the CH button until you hear a beep. Auxiliary Input Jack When a compatible audio unit is connected to the jack, press the AUX button (AUX icon on models with navigation system) to select it. AUXILIARY INPUT JACK If equipped The auxiliary input jack is underneath the accessory power socket on the front panel. The system will accept auxiliary input from standard audio accessories using a 1/8 inch (3.5 mm) stereo miniplug. 220