you can buy a chord that goes into the back of the deck, but if you want to be able to plug in multiple sources (XM radio, iPod etc) the way to go is to get a nice alpine 9847 or 9857 since they have aux input abilities, and you can run the input cord to the spot of your choice. sounds great (No FM modulator BS, or crappy sounding cassette adapter) and looks clean as well. Not to mention that alpine's decks have a very classic design and feel to them