BMW 4 Series F32 F33 F36 2011-2017 Original car NBT system. BMW 3 Series F30 F31 F34 2011-2017 Original car NBT system. This head unit only replaces the original LCD screen unit and retains the factory FM/CD/Sirius unit, so ALL the original BMW car computer/CD/FM/AM/Sirius/XM will still work as before.
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