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bluetooth retrofit tcu

  1. 330ci Bluetooth retrofit help / TCU for sale

    General E46 Forum
    Hi everyone, I have a 2004 330ci and have recently updated my TCU with the newest one available ($350 + core charge) in order to retrofit bluetooth. It worked perfectly, just install the antenna ($20) under the ash tray, and swap out the TCU. *see my previous thread for the correct model...
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