2009 Hyundai Sonata Owner's Manual - Page 134

FEATURES OF YOUR HYUNDAI 1 121 o If you repeat connecting or disconnecting USB device in a short period of time, it may damage the device. o You might hear unusual noise when connecting or disconnecting a USB device. o If you disconnect the external USB device during playback in USB mode, the external USB device can be damaged. Therefore, connect the external USB device when the engine is turned off or in another mode. o Depending on the type and capacity of the external USB device or the type of the files stored in the device, there is a difference in the time taken for recognition of the device, but this does not indicate a problem. o Do not use the USB device for other purposes than playing music files. o Use of USB accessories such as a recharger or heater using the USB I/F may lower the performance or cause trouble. o If you use devices such as a USB hub you purchased separately, the vehicle's audio system may not recognize the USB device. Connect the USB device directly to the multimedia terminal of the vehicle.