To go the wired route, you will need both USB and AUX ports if you plan on using this method with an AUX cord. If you want to use a USB cord, you should get one from Bose, which they sell separately on their website for around 20 dollars or from the Apple store. Using a generic USB will work as well, but there is no guarantee of quality because some generic brands don't carry the same high-end specs as Apple and Bose products do.