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BMW 3-Series (E90 E92) Forum
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Ground wire
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07-21-2006, 02:20 PM | #1 |
Second Lieutenant
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Ground wire
where the best place to ground the sub wire in trunk? for those that have an extra sub where do u guys ground the amp and how do u hook the power wire to the battery?
thanks
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Sneeky4life
'06 330i, SG, ZSP, ZPP, Blackline Taillight, 20" Vossen CV3, M3 front and rear.. |
07-21-2006, 02:55 PM | #2 |
Second Lieutenant
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i ended up using my battery for ground wire. other places seemed to give me problems. battery directly to the postive side of the bolt.
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07-26-2006, 12:11 PM | #4 |
First Lieutenant
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Drives: E90 325xi
Join Date: Jun 2005
Location: Fremont, CA
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under the trunk lining, to the bracket where the sat radio goes. gotta sand the paint off though. There's an existing bolt you can use.
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07-26-2006, 01:53 PM | #5 |
Lieutenant
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General rule of thumb is to ground thw wire to any part that is UNpainted in the trunk, so just scrape away some paint. As for the power, I suggest you look into an aftermarket battery terminal, then you can add the new power wire and keep the existing one to the same terminal.
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