Sitting in the front seat of your new car, you glance at the dash and notice that the audio deck has a USB drive, but no auxiliary input. No worries, with a simple aux USB adapter, you can connect your cellphone or MP3 player easily to your dash to play all of your favorite music on the go. An aux USB adapter is a simple affordable device that allows you the flexibility of plugging in various electronic devices where they may not natively be able to go. A USB to aux adapter can plug in a laptop to a speaker system, or plug an MP3 player into an older computer. For added flexibility and usefulness, consider buying a multi-foot Aux to USB cable, which allows you to operate your device while connected to the attached device. You can find a large inventory of electronic adapters, including cables that allow you to connect a mini USB end to an aux end, on eBay. Buy the right cables and play your music on the go wherever you find yourself.