I am attaching the installation manual for the E90 BT retrofit. Ther are two files, one for a pre-wired car and one for a non pre-wired car. I am told that cars come pre-wired for BT in the US if they have I-drive? however, the file that is for pre-wired cars, details how to install a BT Aerial, Hands-Free Microphone, and other entities that I thought already come installed on the E90 with I-Drive?
http://www.doyourself.org/wp-content/uploads/E90-Bluetooth-Retrofit-with-Preparation.pdf
http://www.doyourself.org/wp-content/uploads/E90-Bluetooth-Retrofit-w-o-Preparation.pdf
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