Features:Function via Bluetooth-enabled devices. No functional limitations of the car radioAllows you to connect an external audio sourceThis cable is with Bluetooth module and microphone.Adopt Bluetooth 5.0 protocol, backward compatible with 2.0 3.0 4.0 other versions of Bluetooth protocol, can support common MP3 format audio, also support for WMA, for WAV, for FLAC, and other high-quality audio format decoding, non-general ordinary Bluetooth function, can support DSD Large-capacity transmission, stable data transfer between devices, fidelity, designed for music enthusiasts.Specification:Item Type:Car Bluetooth 5.0 Aux CableFitment:Only Fit For Peugeot Citroen RD09 Radio With USB PortInstallation:1. Just insert the ISO connector into the AUX socket at backside of the radio host.2. Connect the red wire to ACC 12V+, black wire to GND 12V- in Power Port.3. Match mobile phone with the Bluetooth Module ( It is bluetooth 5.0 version, not need password when connecting )4. Choose Aux from the radio panel or audio source list.5. Play mobile phone music through car speaker & answer calls by microphone.Material:ABScolour:BlackPackage Contents:1 x Audio Cable Adapter1 x Bluetooth microphoneOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.