Thread: Harman Kardon audio details?
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      06-16-2021, 07:25 AM   #44
Dzo
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Drives: M3 Comp. xDrive
Join Date: Nov 2017
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Originally Posted by jonahk View Post
So why the larger amp in the m4? I wonder if the one on the m3 can be upgraded…
Maybe because there is less noise insulation in the M4 and so the cabin is more noisy than the M3 ?
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