If your current deck has an aux input, then you can just buy a headphone adapter that feeds into your deck from the ipod headphone jack. If you're current stereo deck doesn't have this feature, then you're gunna have to go buy a new deck that has the aux input feature so that you can plug in your ipod, cellphone, mp3 player etc. Or just get a FM transmitter thingy but the sound quality is gunna lack. So doing the connection to your stereo deck via aux input is the best option.