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Wire defrost button as on off switch

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    Wire defrost button as on off switch

    Wiring experts, I need your help. Andrew provided a rocker on/off switch for the sport button on his E30 to S54 wiring harness. It works fine but it doesnt look OEM. I currently have it placed aboved the radio next to the hazard and defrost button.

    I have an extra defrost button and pigtail, what I want to do is use that as the on/off sport button, possibly have it light up when pressed. The plan is to remove the defrost picture, and replace it with a vinyl transfer SPORT sticker I had created.

    So my ask is how do I wire it up? Here is a picture. of the switch and pigtail




    Euro Delivery Thread///E30 Project Klaus

    #2
    Found a really old thread with this on it, not sure if its confirmed to work though

    "Yes, it looks like you can use a toggle in place of your stock defrost switch just by placing it in between the gn/bu and bk wires (if you don't care about illumination when on)"

    https://www.r3vlimited.com/board/for...witch?t=410090
    Euro Delivery Thread///E30 Project Klaus

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      #3
      use one of the wider window lock out switches. it's blank, fits perfectly in the slots above the radio, and only has 2 prongs.
      the defroster has 3 prongs, one is for illumination.

      here's my setup, top left is the switch. I'm using it as a manual override for my temp controlled electric fan. i'm working on making a stencil so i can paint a little fan on it.Click image for larger version  Name:	bfaDTNd.jpg Views:	0 Size:	80.7 KB ID:	9863347
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      sigpic

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        #4
        I thought about, that, the only thing is I hate the action of the window lock out switch, its so rough and not lighted. But its a good idea.
        Euro Delivery Thread///E30 Project Klaus

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          #5
          I think I worked with Jean on this for his swap. Hit me up on FB if you need any help on switches.
          Originally posted by Matt-B
          hey does anyone know anyone who gets upset and makes electronics?

          Comment


            #6
            Originally posted by george graves View Post
            I think I worked with Jean on this for his swap. Hit me up on FB if you need any help on switches.
            I think I messaged you on the right profile on FB. If you dont get it let me know.
            Euro Delivery Thread///E30 Project Klaus

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              #7
              Now that I think about it was Nado?
              Originally posted by Matt-B
              hey does anyone know anyone who gets upset and makes electronics?

              Comment


                #8
                Use a fog light switch.
                sigpic

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                  #9
                  Originally posted by AndrewBird View Post
                  Use a fog light switch.
                  Yea I can use one, just sucks that the fog light switch doesnt light up.
                  Euro Delivery Thread///E30 Project Klaus

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