How to use OEM Microphone for Apple CarPlay/Android Auto?
For now, our BMW Android screen support to use OEM microphone for CarPlay/Android Auto, this will enhance the sound quality of phone calls. Compare to use Android screen 's built-in MIC, or aftermarket external MIC, the original car Microphone with much better sound quality. But, there are two questions:
1) How to use it? Below is the wire-diagram and setup.
Step 1: Please select the "external microphone"and factory microphone option in the settings (factory password : 070305).
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Step 2: Please remove the protective hose from the MIC IN connector on the ISO harness and connect it to the MIC IN on the USB harness.
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2) Does all models support this new function? NO!
(1) The model with 8.8 inch screen, it NOT support OEM MIC.
B503K For BMW 1/2/3/4 Series(2018) EVO
B202K For BMW 2 Series F22/F45 MPV(2013-2016)NBT
B502K For BMW 2 Series F45 MPV(2018)EVO
B233K For BMW 3 Series (2009-2012)CIC, For BMW5 Series (2009-2010) CIC
B210K For BMW 5 Series E60 E90(2005-2010)CCC
B207K For BMW 7 Series E65/E66 (2005-2009)
B253K For BMW X3/X4 F25/26(2011-2012) CIC
B223 For BMW X3/X4 F25/26(2013-2017)NBT
(2) Special models as below, NOT support OEM MIC.
B283DK/ For BMW X3 E83 (2004-2010) (with original screen) (10.25'')
B283DK-2 For BMW Z4 E85/E86 (with OEM screen) (10.25'')
B224K For BMW Z4 E89(2009-2018) CIC (10.25'')
B807K For BMW 7 series E65 E66 (CCC) (12.3'')
B607K For BMW 7 series E65 E66 (CCC) (12.3'')
D683DK/D683K For BMW X3 E83 (12.3'')
B810K/B820K For BMW 3/ 5 Series E60 E90(2005-2010) CCC (10.25'')
B610K/B620K For BMW 3/ 5 Series E60 E90(2005-2010) CCC (12.3'')
For the X1 E84 (No OEM screen) and 3 series E90 (No OEM screen) &
Z4 E85 without OEM screen, these models are not support OEM MIC.
Some cars that is too old or without OEM microphone itself,
it not support this functions.