Question about 2004 Dodge Ram

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I have installed a set of gauges in my 2003 Dodge Ram 3500 dually where is the best place to hook up the lights so they will dim with the gauges? Is there a terminal I can hook to or which wire should I splice into

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  • jimstricklan Nov 12, 2009

    I already tried exactly what you are recomending but found the light switch assembly to be something I hadn't seen before it looks like it maybe transistorized or something. Not like an old conventional switch. I probed all the wires available and found non that would dim or brighten my test light.

    This is why I am asking for a color code and location for the actual wire that feeds the instrument cluster. To tie into.

  • jimstricklan Nov 12, 2009

    someone must have the location and color code of the wiring to tap into for my gauges to dim and brighten on a 2003 Dodge ram diesel 3500

  • jimstricklan Nov 12, 2009

    will this provide the dimming of the gauge lights?

  • jimstricklan Nov 13, 2009

    I'll have to try this. I was hoping to tie into a wire under the dash and don't seem to be able to find a schematic or anyone who does. then I could splice into the right wire, solder it, shrink wrap it, and all be pro.

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  • Dodge Master
  • 6,826 Answers

Go to the fuse box,and look for the inst,lps,tap into it with a fuse tap,you can purchase at the auto parts store.This way,they will work with your head lights,and cluster,normally.I hope this was helpful,if so,let us know,thank you.

Posted on Nov 12, 2009

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Nov 12, 2009

    You should be able to find the fuse,and use the text light,and check it the same way,that is good that you use a test light,I am impressed.The fuse will dim,and brighten as you move the dial.If you can not find a fuse that does this,remove the dimmer for the dash cluster,and find the wire the same way,and tap into it,but I believe the fuse is there.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Nov 12, 2009

    will this provide the dimming of the gauge lights?////YES IT WILL

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  • Dodge Master
  • 75,005 Answers

U will need a 12 volt test light to do this, they are very cheap and available at any auto parts store.
Pull the dash light dimmer out of the dash, turn the park lights on, probe the terminals of the dash light dimmer switch (next to the headlight switch) with the test light as you brighten and dim the dash lights move the 12 volt test light from terminal to terminal to locate which terminal causes the 12 volt test light to dim, that is the power source u want for the gauge pack lighting, use a 3M brand wire tap from the parts store and piggyback that wire to the gauge display illumination..

Posted on Nov 12, 2009

  • yadayada
    yadayada Nov 12, 2009

    sorry have no diagrams, suggest you tap into the lighting of the instrument cluster.

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