E46Fanatics - View Single Post - Convertible Ski-pass Subwoofer...custom install
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Old 07-06-2011, 08:10 AM   #9
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Join Date: Apr 2011
Location: West Midlands - UK
Posts: 24
My Ride: 2002 E46 ///M3 Vert
Are all of these setups on Harmon Kardon units? if so, is it as easy as swapping the factory sub with an after market one?
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