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2007 "Business Audio" Poor Radio Reception
MY 2007 335i has the (cr@ppy) Business Audio system. Just like with the Harmon Kardon system in my E46, the radion reception has gotten steadily worse over the years. On the E46, there are two electronic modules, one on each C-pillar, one being the antenna amplifier, the other.... I have no clue. But, cleaning all the connections on those modules, and their connections to the rear window heating grid (which also acts as the antenna), supposedly improves reception.
I assume the E90 has similar modules buried somewhere, that suffer similar problems.
Where are they?
How are they accessed?
Any other problem areas I should know about?
Regards,
Ray L.
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