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Boost gauge wiring using mirror adjustment as switch

Discussion in 'A3/S3 Forum (8L Chassis)' started by sekenzo, Dec 16, 2011.

  1. sekenzo

    sekenzo Member

    Sep 26, 2009
    Likes Received:
    I have a digital boost gauge with wiring to battery and ignition. When the engine is not on, it displays battery voltage and when engine running, it displays boost. I am thinking of wiring that up to the left right mirror adjustment selector, so I can have have a switch to control off, battery or boost. Is this at all possible, does anyone have a wiring diagram I can reference?
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  3. jay1601

    jay1601 Well-Known Member

    Jun 25, 2010
    Likes Received:
    why not just wire it to a toggle switch/flip switch, rather then hacking up the standard loom

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