Car IPOD AUX Adapter is a digital integration between your iPod (iPhone) and OEM car stereo system for many vehicles.It provides direct audio interface to the car stereo via the CD changer nport. It delivery CD quality sound from iPod/iPhone to the car stereo speakers.Control music files iphone by radio faceplate or ipod/iphone buttons! Specification: Voltage Input : 12V DC Signal-to-Noise : 95DB Max. Current : 600MA Max. Voltage output : 12V D/A Device : 24BIT 192KHZ Total Harmonic Distortion : 0.01% Frequency Response : 20HZ-20KHZ Working Temperature : -10C- 80C Features: 1. Delivery CD quality sound from the iPod through existing car stereo; 2. Control and operate your iPod with car stereo buttons or steering wheel controls; a. track +/-;disk +/-; volume +/-; b. use RPT/Scan button toswitch IPOD and AUX c. press CD button switch CD player 3. Charge iPod/iPhone