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Thread: Quick wiring question regarding power supply

  1. #1
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    Question Quick wiring question regarding power supply

    I'm currently running a Carnetix P1900 with the MacPac Power Cable Kit and Mac Mini Y Cable. It is currently wired to turn everything on when I turn the key to IGN.

    How would I go about changing this setup to just having it wired to a toggle switch? One position turns everything on, the other turns everything off. I want to have control over the computer, not my IGN.

    Also, would I be able to eliminate anything with this new setup?

    Thanks in advance!

  2. #2
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    Would it be as easy as splicing the switch in between the ground wire on the macpac cable? If the IGN was on and I flipped the switch on, it would act like normal right?

  3. #3
    FLAC PhilG's Avatar
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    All you would need to do is disconnect the yellow wire (input side of the 1900) from the accessory line on the vehicle and connect it to one side of a toggle switch. Connect the other post of the toggle switch to the red wires on the input side of the 1900 which are connected to a B+ line on the vehicle.
    My 2007 Ford F350 Work Log located HERE

  4. #4
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    Quote Originally Posted by PhilG View Post
    All you would need to do is disconnect the yellow wire (input side of the 1900) from the accessory line on the vehicle and connect it to one side of a toggle switch. Connect the other post of the toggle switch to the red wires on the input side of the 1900 which are connected to a B+ line on the vehicle.
    Thank you sir!

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