0TmdenisBest Answer 10 years ago Classic Car AM Radio iPod MP3 Adapter 6 or 12 volt +or- It's On Ebay! I have this in my classic cars. I just move my Iphone around to the car I'm driving. It works cool. $115.This is a "Buy it Now" listing for an adapter that plays your iPod or MP3 player through your existing AM Radio (it is a hardwired AM modulator with an automatic switch)It's like adding a CD changer to your original stereo system but without the high cost, labor or mounting issues. iPod/MP3 player not included.Easy installation and NO MODIFICATIONS needed.No need to upgrade or change out your stock radio.Perfect for classic cars, one unit works for all vehicles 6 volt, 12 volt, negative ground or positive ground28 inch cable plugs into any iPod, iPhone, Zune, or MP3 player via the 3.5 headphone jack.MADE IN THE USAAbout the size of a deck of cards, it easily mounts under the dash out of sight.Tune your AM radio to 1000 and it automatically senses when your iPod or MP3 player is turned on.12 seconds after you turn your iPod or MP3 player off it automatically switches back to AM radio reception.Call us for additional information M-F 9-5 PST 949-722-1084 or 1-877-435-6911Other similar units cost much more and are specific to 6/12 volt +/- ground. This unit fits all cars regardless of voltage or ground orientation. Remove it when you sell your classic car and install in the next car.