iTrip is a large family of products with a distinguished heritage. All iTrips send your music wirelessly to your FM radio so you can listen through your own speakers. We call this particular one â??autoâ? because it gets its power from your vehicleâ?TMs 12 volt accessory outlet or cigarette lighter. And we call it â??universalâ? because it works with almost any portable audio device that has a standard 1/8â? headphone jack (whether CD, MP3, cassette, or, yes, iPod). And the â??Plusâ? in the name of this iTrip model refers to its ability to charge a portable player by means of a built-in USB port. (Check your player"s documentation for charging capability.) Plug in your playerâ?TMs USB charging cable. Not only do you get to listen to your tunes while youâ?TMre traveling, you arrive with a fully-charged player.