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Wiring through firewall

Discussion in 'Technical Chat' started by Gunshot-6A, Apr 12, 2017.

  1. Apr 12, 2017 at 12:54 PM
    #1
    Gunshot-6A

    Gunshot-6A [OP] West Coast Randy

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    Conner
    Salt Lake City
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    I have 4 external relayed accessories I have plans to connect to carling switches in the dash. Instead of making 4 separate wires run through the firewall, is there any risk or downside to using an 18-4 wire so I only have to run a single (bigger) wire through once to make for a cleaner look?

    I figure if i disconnect an accessory, i could just cap off one of the unused leads.

    example:
    https://www.lowes.com/pd/Southwire-18-AWG-4-Conductor-Jacketed-Sprinkler-Wire-By-the-Foot/50142294

    What am I missing?
     
  2. Apr 12, 2017 at 12:55 PM
    #2
    ramonortiz55

    ramonortiz55 Not A Well-Known Member

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    That is one way to do it. Don't see anything wrong with that.
     
  3. Apr 15, 2017 at 8:13 AM
    #3
    License2Ill

    License2Ill Woke like a Coma Toyota Tacoma

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    It's a dry heat thou, AZ
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    Bailing wire & Duct tape
    Edit: failed at reading. Sensor wire is fine for feeding relays.
     
  4. May 10, 2017 at 6:25 PM
    #4
    Dragons Taco

    Dragons Taco Well-Known Member

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    Perfect. Nice writeup.

    I'm using a multi conductor cable to my switch and to my roof too. (through an access hole I drilled under my factory rack)
    They are more convenient to route rather than multiple single conductors and the plastic conduit.

    I have a manual and there is a convenient plug through the firewall on the passenger side.
     

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