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Wiring help, first time setting up aux fuse box!

Discussion in 'Lighting' started by Lilshawny44, Jan 14, 2021.

  1. Jan 14, 2021 at 9:35 AM
    #1
    Lilshawny44

    Lilshawny44 [OP] Active Member

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    If anyone could point me in the right direction, I have used the search and dug through tons of forums but cannot seem to did quite what I’m looking for.

    In the past I have always dreamed of having an aux fuse box to organize the mess of wires I always had under the hood. Granted I always managed to use about 100 zip ties and make something I could deal with.

    I have since upgraded to a 2021 TRD Sport, and have purchased everything I believe I will need to wire in my aux panel and lights. No more rats nest.

    Now, I am fairly familiar with auxiliary lighting wiring and using taps and such to tie into a key powered circuit, either under the hood or in the cab.

    Where I am getting a bit stuck and maybe I’m just over thinking the whole process.
    How do you incorporate the fuse panel when; for example, I want to wire a pair of aux backup lights, no switch in the cab. I keep thinking maybe I would just use a tap to tie into a keyed circuit and that’d be it, no wire to the aux fuse panel. Surely that can’t be it though. I just bought the damn fuse box

    Another example similar idea, light bar that I will have wired to a switch in the cab. That line from the switch to under the hood will tie into my aux fuse panel.


    Also, now that I am looking at it, I hadn’t considered the difference between a switched and non switched aux fuse box. Huh. Guess I have some digging to do.

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    Gunshot-6A likes this.
  2. Jan 14, 2021 at 11:16 AM
    #2
    Lilshawny44

    Lilshawny44 [OP] Active Member

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    Also, hey if someone has any info on this idea.
    I saw somewhere someone had put in a DPDT switch, so he could either run the panel with accessory, or switch it over to constant hot, not sure what the third option would be, kill switch for the fuse box maybe?
     
  3. Jan 14, 2021 at 11:17 AM
    #3
    Tacospike

    Tacospike Semi-Unknown Custodial Member

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  4. Jan 14, 2021 at 11:27 AM
    #4
    Gunshot-6A

    Gunshot-6A Prime Beef

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    For your top picture, power goes in on the big stud at the bottom end, goes out the bottom little screws to the lights, etc. Comes back to the screws on the top half of the block, goes to battery or central ground off the big stud at top center. There is no way to use this block (without other bits) to do what you want (turn lights on and off at will). This item would be a good option for things like a radio, fridge, etc that have an on/off button built into them already. Its a distribution block not a switching device.

    The bottom option is what you are looking for best I can tell. You will have a large cable coming from the battery (similar to the upper picture), but then the switches on the control panel will dictate when the power goes out the colored leads. The colored leads are essentially the same as the little screws in the top item, but you can decide when they are on. The lights, etc will then go directly to ground instead of coming back to a central point.

    TL;DR : always on power distribution vs switched on power distribution
     
  5. Jan 14, 2021 at 1:25 PM
    #5
    Lilshawny44

    Lilshawny44 [OP] Active Member

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    Sorry. I suppose leaving important info out doesn’t make it easiest to understand. I’m planning to set up something similar to @toobluetacoma06 ‘s setup and many others.
    The rocker switch I’ll be running basically just runs the negatives together and I’ll have a relay between the 6 switches and the aux fuse panel. From the fuse panel to the breaker and to the positive post on the battery. I believe the way it’ll be set up that way, will result in constant hot, and I’ll just have to be sure to not leave anything on. *fingers crossed

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