Adding some bass to stock audio set up? | BimmerFest BMW Forum
Speaker Installation Kit Compatible with BMW 5 Series E39 Touring Sedan Front Ground Zero GZIF 52X Speaker Coaxial 4 Ohm 13 cm : Amazon.de: Electronics & Photo
BMW Subwoofer | BMW 5' E39 530d M57 Europe
BMW 5 series, E39, Touring (1995-2003) stealth box for subwoofer 10" (250 mm).
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BMW E39 5-SERIES WAGON REAR SUBWOOFER SPEAKER BOX 8374504
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BMW 5 E39 Touring Auto Bass Gehäuse + 25cm 4 Ohm Subwoofer HERTZ CS25, 289,00 €
Bimmerforums - The Ultimate BMW Forum
Subwoofer Box Nokia Audio System Touring BMW 525i E39 103K OEM | eBay