1,Applicable Model: Car Aux cable, replacement for Citroen C2 C3 C4 C5 C6 C8 Replacement for Peugeot 207 307 307SW 307CC 308 407 407SW 607 807 1007 4007 etc. 2,Wiring Instructions: You can just insert the 12pin connector to the back radio, then connect the red wire to 12Vand, the black wire to 12V‑. 3,Easy to Use: 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,Bluetooth Mucsic Function: Designed for music enthusiasts, you can hear music from your phone/pad/mp3(They should have blueooth function). 5,Durable Material: Processed with high‑quality ABS and metal materials, wear‑resistant, high‑temperature resistant, and have a long service life. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.