Features: Add on and build up your system. Allows you to plug portable MP3 or cell phone directly into compatible head unit and listen to your favorite music. Suitable for Alpine head unit must have the "D shaped" connection at the back of the car stereo. Fast data transmission provides quick and easy file navigation. In order to use this accessory, the Alpine user manual must indicate AUX. Specifications: Material: Plastic & Copper Color: Black & Blue Package Weight: Approx. 35g Compatible With: CDA-9852/E CDA-9856/E CDA-9857/E CDE-9871/R/RR CDE-9873/E/RB CDA-9883/E/R CDE-9885/R CDE-9887/R DVA-9861/Ri IVA-D105/E/R IDA-X001 IVA-W205/E IVA-W202R IVA-W200Ri IDA-X001 Package Included: 1 x AUX Input Cable Package List 1Add on and build up your system 2Allows you to plug portable MP3 or cell phone directly into compatible head unit and listen to your favorite music 3Suitable for Alpine head unit must have the 4Fast data transmission provides quick and easy file navigation 5In order to use this accessory, the Alpine user manual must indicate AUX