Features: 1.Support microphone handsfree and bluetooth audio, fit for Alpine/for JVC/for UniLink devices. 2.With this adapter, you can listen to music from your phone/tablet/MP3 (they should have Bluetooth function). 3.Simple to use, just insert this adapter to the back radio, then connect the red wire to 12Vand, the black wire to 12V?. 4.Match your phone or pad to bluetooth module, and choose Aux from your radio, then you can use your phone to play music through car speakers. 5.59.1in microphone cable length, flexible to use. Compact size, lightweight and portable, easy to carry and store. Specification: Item Type: AUX Cable Adapter Material: ABS Microphone Cable Length: Approx. 150cm/59.1in Application: Compatible with the following radios: for Alpine for JVC and all for UniLink devices Compatible with following for Alpine radios: INA-N333RS/RRS, DVA-7996R, DVA-9860R, DVA-9861Ri, DVA-9965R, CDA-7998R, CDA-9535R, CDA-9830R, CDA-9831R, CDA-9833R, CDA-9847R, CDA-9851R, CDA-9853R, CDA-9855R, CDA-9812RB, CDA-9852RR/RB, CDA-9854R, CDA-9856R, CDA-9857R, CDA-9883R, CDA-9885R, CDA-9887R, CDA-9884R, CDA-9886R, 105Ri CDA, CDA-117Ri IDA-X100 IDA-X200, IDA-X300, iDA-X301, iDA-X303, iDA-X305, IDA-X311, IDA-X313 Wiring Instructions: The red wire is connected to the positive pole The black wire is connected to the negative pole Signal receiving connector