2012 Acura RDX Owner's Manual - Page 278

Playing a USB Flash Memory Device (Models with navigation system) To Play a USB Flash Memory Device This audio system can operate the audio files on a USB flash memory device with the same controls used for the in-dash disc changer. To play a USB flash memory device, connect it to the USB adapter cable in the console compartment, then press the DISC/AUX button. The ignition switch must be in the ACCESSORY (I) or ON (II) position. The audio system reads and plays the audio files on the USB flash memory device in MP3, WMA or AACᤳ formats. Depending on the format, the audio control display shows MP3, WMA or AAC when a USB flash memory device is playing. ᤳ: Only AAC format files recorded with iTunes are playable on this audio unit. The recommended USB flash memory devices are 256 MB or higher, and formatted with the FAT file system. Some digital audio players may be compatible as well. Some USB flash memory devices (such as devices with security lockout features, etc.) will not work in this audio unit. Even if recorded in MP3, WMA or AAC format, unsupported files cannot be played. If the system finds it, the audio unit displays UNPLAYABLE, and then skips to the next file. 272