i encourage you guys if you ever have a chance listen to the Bang and Olufsen upgraded stereo in an Audi Q5 / SQ5... the BMW option is by all accounts in comparison an embarrassment... i mean i think the fact that BMW downgraded the stereo in the later gens speaks volumes...
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2 x N54 -> 1 x N55 -> 1 x S55-> 1 x B58
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