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      09-06-2012, 06:14 AM   #4
avx
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Drives: E90 2006 330i, stock
Join Date: Jul 2012
Location: Bucharest

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see this thread

http://www.e90post.com/forums/showthread.php?t=364359

It will show you where to tap the signal from (one of the ways it can be done).

One more thing, the default (uncoded) base system has a high-pass on the rear speakers signal, so make sure you read the entire getting started thread on audio upgrade, it helps a lot.