Features: 1.Adopt bluetooth 4.1 version, not need password when connecting. 2.Just plug the blue connector into the socket back of your radio, simple to use. 3.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. 4.Allows you to hear music from your phone/pad/mp3(They should have blueooth function). 5.The bluetooth module is made for Alpine KCE-237B, stable and dependable for using. Specification: Condition: Brand New_x000D_ Item Type: Bluetooth AUX-IN Aadapter _x000D_ Material: ABS_x000D_ Color: As picture shown_x000D_ Compatible Type:_x000D_ For CDA-9852/E_x000D_ For CDA-9856/E_x000D_ For CDA-9857/E_x000D_ For CDE-9870/E/R/RM_x000D_ For CDE-9871/R/RR_x000D_ For CDE-9873/E/RB_x000D_ For CDE-9881/R/RB_x000D_ For CDA-9883/E/R_x000D_ For CDE-9885/R_x000D_ For CDE-9887/R_x000D_ For DVA-9861/Ri_x000D_ For IVA-D105/E/R_x000D_ For IDA-X001_x000D_ For IVA-W205/E_x000D_ For IVA-W202R_x000D_ For IVA-W200Ri_x000D_ For IDA-X001_x000D_ Fitment: Fit for Alpine 2009 Full Speed Models Note: Before purchase, please confirm that the host socket is 13PIN, the interface is consistent in order to use.