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Old 05-18-2009, 01:13 AM   #15
Registered User
Join Date: Apr 2009
Location: jacksonville, nc
Posts: 159
My Ride: 2002 325i
adding another battery is just gonna decrease the life of ur alternator. i have a rockford t10001 amp and 2 T2's and the only dimming i ever experienced was the interior lighting of the trunk

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