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Discussion Starter · #1 ·
Im getting ready to instal a subwoofer into my '01 330Xi and the guys at the electronics store tell me that I should put in this "noise eliminator" that takes away noises such as alternator whine. Just wondering if anyone else has one of these/if anyone has a subwofer with out this and nothing is making noises? Or if I even need the thing or are they just trying to make a couple more bucks?
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