Now whether you are going down the block or cross-country, you will have plenty of music for the whole trip with this adapter. Connect your CD Player/MiniDisk Player/iPod?to your car stereo through your car's in-dash cassette player. Cassette-shaped Interface inserts into your car's tape deck. Mini-plug inserts into your iPod?CD Player/MiniDisk Player headphone jack. Silent mechanism reduces mechanical noise on the road. Note: If there is unusual noise clatter during the usage of the cassette adapter while in play, press the pause button (if available) to reduce the sound clamor produced by the adapter Spring-loaded cassette head helps maintain contact with cassette player's head for clear sound.