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Trying to install a bluetooth adapter to my 2008 Citroen C4, but pin 11 that I was told to splice to is unused in my radio. What are my options? I could
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Car Audio Bluetooth 5.0 Receiver Aux Adapter for Peugeot Citroen C2 C5 RD45 RD4 Radio Module Bluetooth Aux Cable - AliExpress
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