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 12V+, 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_x000D_ Material: ABS_x000D_ Microphone Cable Length: Approx. 150cm/59.1in_x000D_ Application:_x000D_ Compatible with the following radios:_x000D_ for Alpine_x000D_ for JVC and all for UniLink devices_x000D_ _x000D_ Compatible with following for Alpine radios:_x000D_ INA-N333RS/RRS,_x000D_ DVA-7996R, DVA-9860R, DVA-9861Ri, DVA-9965R,_x000D_ CDA-7998R, CDA-9535R, CDA-9830R, CDA-9831R, CDA-9833R, CDA-9847R, CDA-9851R, CDA-9853R, CDA-9855R,_x000D_ CDA-9812RB, CDA-9852RR/RB, CDA-9854R, CDA-9856R, CDA-9857R, CDA-9883R, CDA-9885R, CDA-9887R,_x000D_ CDA-9884R, CDA-9886R,_x000D_ 105Ri CDA, CDA-117Ri_x000D_ IDA-X100 IDA-X200, IDA-X300, iDA-X301, iDA-X303, iDA-X305, IDA-X311, IDA-X313_x000D_ _x000D_ Wiring Instructions:_x000D_ The red wire is connected to the positive pole_x000D_ The black wire is connected to the negative pole_x000D_ Signal receiving connector