The Griffin Technology DirectDeck is the easiest, most convenient way to listen to any portable audio player through your car's stereo. Plug DirectDeck's audio jack into the headphone port of your iPod, MP3 player, CD player, or other portable audio device. Insert the DirectDeck cassette adapter into your cassette player.
With DirectDeck, you have two separate volume controls: the one on your car stereo system and the one on your portable audio player. The way you adjust them will affect the sound quality. Too much volume from the portable player may overdrive the cassette deck, causing distortion. If this happens, adjust the portable player volume down and adjust the stereo system volume up to the desired level. Too little volume from the portable player may result in low output or no signal at all from the car stereo. In this case, increase the volume of the portable player.