Specifications:Item type: Cables， adapters & socketsVoltage input: DC 12VSignal-to-noise: 95DBMax. current: 600mAFrequency response: 20HZ-20KHZWorking temperature: -10-80 Celsius degreeTotal Harmonic Distortion:0.01%Package size: 20 * 8.5 * 5.7cmPackage weight: Approx. 185g Feature:1. Best sound quality from High quality Power amplifier chip and by using the CD changer port connection2. Jack-Connection3. Plays MP3 and WMA files4. Plug & play installation5. Be able to connect an external audio source like: a. MP3-Player b. Portable DVD-Player c. Mini Disk-Player d. Notebook/Tablet e. iPhone /iPod/iPhone f. Mobile Phone， such as HTC， Nokia， Samsung etc. g.PSP6. Brand New and High Quality Compatible with: Edge 2007-2010Expedition 2007-2009Explorer 2006-2009F-150 2004-2008F-250 2005-2009F-350 2005-2009F-550 2005-2009Focus 2005-2007Freestyle 2005-2007Fusion 2006-2009Mustang 2005-2009Sport Trac 2007-2009LINCOLNMark LT 2006-2008MKX 2007-2009Navigator 2007-2009Zephyr 2006MercuryMilan 2006-2009Mountaineer 2006-2009 Installation Instruction:1. Turn off car engine and remove key from ignition， if your radio use a security code，make sure that you have the code before unplugging the radio.2. Unmount the radio from the dash and find CD changer port at the back of radio.3. Plug the IPOD AUX Adapter connector to CD changer port.(For Audi/V.W/Skoda/Seat radio，connect the GND cable to the shield of the radio)4. For IPOD/Iphone user，connector IPOD/Iphone via IPOD AUX Adapter 30P connector.once the unit is installed just power on the car radio and ipod，you can Press CD button，then you can enjoy the IPOD Music ，keep Ipod changed and ready to go.5. For Auxiliary device such as PSP，MD.MP3.mobile etc，connect it with 3.3 Jack cable. It will start play music.Package List:1 * USB Car Adapter1 * User Manual