Getting an ignition +12v wire at the rearview mirror - Bimmerfest - BMW Forums



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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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Old 10-27-2014, 02:13 PM
Brandon540/6M Brandon540/6M is offline
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Getting an ignition +12v wire at the rearview mirror

Trying to hook up a dash cam and wiring it in somewhere up by the map lights / sunroof switch panel. EDIT: Found my problem was my own fault - use the green / white wire for +12v and the brown for ground. Just make sure you check the wires you tapped into twice to make sure you got the right ones
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Last edited by Brandon540/6M; 10-27-2014 at 10:12 PM.
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Old 10-27-2014, 02:46 PM
JKRIT JKRIT is offline
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I always use the green/white wire up there for a radar detector. Its unfortunate if that doesn't provide enough current for your purposes.
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Old 10-27-2014, 03:17 PM
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bluebee bluebee is offline
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Typing /radar detector f3 in the bestlinks nets this.
- Adding new fuses & wiring in the engine bay (1) & all about the BMW Glovebox Flashlight Cigarette Lighter Power Adapter (1) (2) (3) & how to install a Valentine or Escort radar detector (1) (2)
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See also: E39 Bestlinks & How to easily find what you need
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Old 10-27-2014, 10:01 PM
Brandon540/6M Brandon540/6M is offline
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Ok, I'm embarrassed to admit, i somehow snagged the wrong ground wire and got the illumination wire instead of ground. DUR, that's what I get for wiring in the dark and using my cell phone flashlight for light. Wow, well looks like green / white is still the wire to use, and BROWN is the proper ground

By the way bluebee, I was originally searching for that part you listed (BMW Glovebox Flashlight Cigarette Lighter Power Adapter) a few weeks ago and that part is discontinued. Couldn't find it anywhere!
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