Description Car MP3 Interface ( CMI ) is a digital virtual CD changer, which can be easily installed and used. It delivers CD quality music directly into car stereo system via CD charger port. CIM supports direct control from car radio panel and steering wheel. It supports SSD / SHSD / MMC card and USB stick play via built-in USB slot and SD card slot. Features: Direct connection via CD changer port with CD quality sound Control music files from your car radio panel or steering wheel Support USB flash, SD card and 3.5mm jack input Built-in high quality MP3 / WMA decoder Built-in amplifier chips No signal interfere, no battery required Smart design and easy to install and use Applications: Car Models: For Mazda 3, 2004 - 2008 ForMazda 6(see note 2), 2003 - Oct.2005 For Mazda 6 ( see note 2 ), 2006 - 2008 For Mazda 6 ( Panasonic / Bose ), 2009 For Miata / MX5 ( non Bose ), 2003 - 2008 For CX7 ( non Bose ),2007-2008 For RX8 ( see note 3 ), 2004 - 2008 For Premacy, 2002 - 2008 For Mazda 323, 1999 - 2003 For MPV, 2002 - 2011 Compatible Head Units 1168, 1269, 4103,14789909, 14792086, 14792089, 14794008, 14794522, 14795137, CQ-EM4570AK, CQ-LM4720A, CQ-TT3070AA, CR-LM4282KA, CR-LM4282KA CD,CQ-XM8950A, GS1F669RXA, GJ6R66DSXF02, PT-2674J Compatibility Notice 1. Not compatible with active Satellite radios or Navigation system. 2. Not for all Mazda 6 supports external CDC connection, internal modification might be needed; Mazda 6, produced fromNov. 2003 to Sep. 2005, needs to solder a jumper or a 0-ohm chip register on location L716 in its head unit. 3. RX-8 radio firmware version must be v9.55 or later, v10.1 and v9.81 not supported. Specifications: Voltage input: DC 12V Max current: 200mA Total harmonic distortion: 0.01 percent Frequency response: 20Hz - 20KHz Working temperature: -30 - 80 Deg.C Package weight: 0.188 kg Package Size(L x W x H): 15.50 x 10.00 x 4.50 cm / 6.1 x 3.94 x 1.77 inches Package Contents: 1 x Car Audio Interface, 1 x Card Reader, 1 x English Manual \''