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Thread: Rear View Mirror Mod

  1. #1
    Join Date
    Mar 2005
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    Default Rear View Mirror Mod

    I just picked up a rear view mirror with the alarm light (Light Emnitting Diode) at the bottom from a 2003 BMW 5 series (Part No. 51168257276). It's got 2 wires going into the plug. I got it pretty cheap from eBay. The keyless entry system I'll be installing has a blinking light to install. Has anyone already tried this? Any pointers?
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    Ralph Mendoza Jr. - Long Beach, CA

  2. #2
    Join Date
    Oct 2004
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    3,395

    Default

    There has to be another harness in there; the autodimming requires at least three wires (ground, reverse, ignition (or hot with lights on)). Later renditions, including most E34s, have a 6 wire harness. Yours will be a 3 wire plug. Unfortunately, wreckers love to disassemble cars with a pry bar and a pair of dykes. They probably yanked the body harness connector out of the mirror.

    EDIT: actually, what I said earlier isn't entirely correct. Every BMW mirror that I've seen has at least 3 leads. My generic Gentex uses two.

    best, whit
    Last edited by Kalevera; 09-21-2005 at 05:56 PM.

  3. #3
    Join Date
    Oct 2004
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    Honolulu
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    3,105

    Default All you need is a siren

    to go with that big red globe, and you've got a police car.

    The car thieves will definitely stay away with that blinking


    Vee ave vays of dealing vid your kind...........

  4. #4
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    Mar 2005
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    Default

    Quote Originally Posted by lowell
    There has to be another harness in there; the autodimming requires at least three wires (ground, reverse, ignition (or hot with lights on)). Later renditions, including most E34s, have a 6 wire harness. Yours will be a 3 wire plug. Unfortunately, wreckers love to disassemble cars with a pry bar and a pair of dykes. They probably yanked the body harness connector out of the mirror.

    EDIT: actually, what I said earlier isn't entirely correct. Every BMW mirror that I've seen has at least 3 leads. My generic Gentex uses two.

    best, whit
    Actually there's no autodimming on the mirror. You turn the red globe to dim the mirror.

    Ralph Mendoza Jr. - Long Beach, CA

  5. #5
    Join Date
    Dec 2004
    Location
    Sydney, Australia
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    Default

    Heh, I got a black globe on mine! Its out of an X5.

    Maybe I should drill a whole in it and run an LED there too... nah. Around where I leave my car sometimes, anything different about a car will attract attention. Especially flashing things in the dark... I don't want a brick thrown on the car 'cos it stood out like a flashing red thumb.

    (I'm serious- anything weird and someone will rip it off/smash it up)

    Pity. It is a good place for the light, given the job it has to do.

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  6. #6
    Join Date
    Oct 2004
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    3,395

    Default

    Quote Originally Posted by uscharalph
    Actually there's no autodimming on the mirror. You turn the red globe to dim the mirror.
    Ah! It's one of those!

    Son of a gun. Well then, it should be a pedazo de torta to make it work.


    yes, I know, the idiomatic expression doesn't translate that way.

    best, whit

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