3.5mm Universal Car Audio Cassette Adapter Audio Stereo Cassette Tape Adapter for MP3 Player and Smart Phones (Black) It's simple design would be a great addition to your old car. Compatible with any 3.5mm audio jack devices. You can play music with your cellphone, iPod or MP3 player through your car's cassette desk without replacement. Please keep the volume balance between music player and car's audio, you will get excellent sound quality. Portable, lightweight, and easy to use