Features:100% quality and .It is easy to install and use.It can connect through the car CD player directly,Non-destructive installation.Control the music play and volume by car radio panel or the steering wheel.It support 3.5mm AUX audio input.Let the music more pretty for high quality MP3/WMA decoder,How to used: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 for IPOD/Iphone via for 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 Music ,keep Ipod changed and ready to go.5. For Auxiliary device such as for PSP,MD.MP3.mobile etc,connect it with 3.3 Jack cable. It will start play music.Product properties:Item Type:Cables, Adapters & SocketsBrand:noVoltage output: 12VModel:noItem Head Size:3*1.5*1cmItem Weight:124gMaterial Type: plasticSpecial Feature:Car AUX AdapterInterface type:otherSpecifications:Condition:newPackage Size:15*10*4cmMain Color: blackSignal-to-noise:90dBMax.current:35MA total harmonic distortion:0.01%requency response:20HZ-20KHZ working temperature :-30C-80CPackage includes:1 x AUX In AdapterNoted:Please be sure that the connector is fit for your car.