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BMW 3-Series (E90 E92) Forum
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Door speaker addition
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05-12-2011, 06:38 AM | #1 |
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Door speaker addition
Can anyone tell me what the addition to my door speaker is for.
The first picture is the speaker fitted to my car, the second is another door speaker from a freinds car without the addition. Any ideas? |
05-12-2011, 07:55 AM | #3 |
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05-12-2011, 08:16 AM | #4 |
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