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Old 12-06-2011, 09:27 PM   #4
nick0780
Registered User
 
Join Date: Oct 2011
Location: Mississippi
Posts: 15
My Ride: 2004 M3
Do the HD-690C just drop in or do you have to make mods to the HK enclosure. Just ordered a set on Ebay. Also how do they sound? Thanks for the info.
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