Biurlink Car Bluetooth 5.0 5V/12V Audio Input AUX USB Wireless MP3 Music Adapter For Peugeot 407 508 For Citroen C2 C4 C5 - AliExpress
Car Bluetooth 5.0 AUX Cable Adapter TF USB Fit for Peugeot 207 307 407 308 - AliExpress
How to Install AUX Cable and activate with Diagbox on Peugeot 407 & Citroen C5 (RD4 Radio) - YouTube
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Amazon.com: RoverOne Car Stereo Bluetooth Radio GPS Navigation Head Unit for Peugeot 407 2004-2010 with Touch Screen Android USB MirrorLink WiFi : Electronics