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Running wire through the firewall...

Discussion in '5th Gen 4Runners (2010-2024)' started by vthoky, Jan 12, 2025 at 4:56 PM.

  1. Jan 12, 2025 at 4:56 PM
    #1
    vthoky

    #1
    vthoky [OP] New Member

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    Trailer connector relocate, tint, work lights, Pro wheels.
    ... how many "reasonably accessible" places are there for a wire pass-through?

    I've used the easy-to-find one, in the area behind (ahead of?) the brake pedal and fuse box. I need to run another cable (three wires) through, and I'm wondering if there are more pass-throughs that are as easy to deal with as that one.

    Anyone got guidance to give? Thanks, all.
     
    vthoky, Jan 12, 2025 at 4:56 PM
    #1
  2. Jan 12, 2025 at 5:04 PM
    #2
    Borracho Loco

    #2
    Borracho Loco My 4Runner identifies as a Prius!

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    Oooh look, another mod.....
    You have two main options:

    Passenger side grommet:

    https://www.youtube.com/watch?v=94yyWXuUDC4&t=72s


    Drivers side grommet:

    https://www.youtube.com/watch?v=AF4FpuLROwc&t=1s
     
    Borracho Loco, Jan 12, 2025 at 5:04 PM
    #2
    vthoky[QUOTED][OP], Thacrow, djwantke and 2 others like this.
  3. Jan 12, 2025 at 5:15 PM
    #3
    vthoky

    #3
    vthoky [OP] New Member

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    Trailer connector relocate, tint, work lights, Pro wheels.
    Thanks, BL!
    I've used the one JP shows on the driver's side. There may be room still to get this cable through, but I'm trying to make a Plan B before I get started.
     
    vthoky, Jan 12, 2025 at 5:15 PM
    #3
  4. Jan 12, 2025 at 5:55 PM
    #4
    yotahead858

    #4
    yotahead858 New Member

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    Stock
    I used the rubber grommet where the harness passes through. There's a "nipple" on the grommet I sliced to feed my auxbeam cable.
    I'm saving the one shown in the video above when I decide to run a power cable to the trunk for an amp/ subwoofer set up.
     
    yotahead858, Jan 12, 2025 at 5:55 PM
    #4
  5. Jan 13, 2025 at 10:07 AM
    #5
    MeefZah

    #5
    MeefZah ------------

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    The grommet you describe on the driver's side behind the fuse box is large enough to get multiple cables through. I've passed a PL-259 antenna connector through it, albeit tightly, and with Windex on it as lube. That's about 1" diameter.
     
    MeefZah, Jan 13, 2025 at 10:07 AM
    #5
  6. Jan 13, 2025 at 10:59 AM
    #6
    morfdq

    #6
    morfdq New Member

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    The rubber grommet. Here is a tip though. Take a long screwdriver and push from the engine bay inward. Push hard. You have padding on the inside you need to clear out of the way. My grommet hole was covered with padding. Simple push with flat base screwdriver cleared it out.
     
    morfdq, Jan 13, 2025 at 10:59 AM
    #6
  7. Jan 13, 2025 at 11:12 AM
    #7
    LCJ77

    #7
    LCJ77 New Member

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    Ceramic Tint, D/S grab Handle, waiting for Brite Box Anytime, may add Raptor lights
    I used the D/S punch a hole W/scribe then pulled 0.041 SS safety wire through. Made a "J" hook wrapped pwr wires for Bright box Anytime driving lights & for Raptor lights. wrapped like a bullet W/electrical tape, DC-4 & grabbed W/pilers inside pulled all through, then smeared some black RTV on Eng. side of fire wall grommet.
     
    LCJ77, Jan 13, 2025 at 11:12 AM
    #7
  8. Jan 13, 2025 at 12:38 PM
    #8
    Lost Woods

    #8
    Lost Woods New Member

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    The nipple on the wiring harness is large enough to pull a 6awg cable through without issue. You can get a standard 15mm or 5/8" wire grommet in the larger hole with 4 awg or even 2 awg. Un-split corrugated loom is also really good if you are just running a few wires and want it better sealed.

    This dude is king when running through the larger hole. Punched through the inner rubber liner like butter. Just punch through from the outside, run your fish wire, remove the tool, and pull whatever through.

    $12 Performance Tool W2935 Stainless Steel Wire Insertion Tool - Piercing for 1/4" Wiring Hole
    https://www.amazon.com/gp/product/B073WZCL8Q
     
    Lost Woods, Jan 13, 2025 at 12:38 PM
    #8
    jptx, djwantke and Saker like this.
  9. Jan 13, 2025 at 3:01 PM
    #9
    djwantke

    #9
    djwantke New Member

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    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting Feb. 13/2024: New ditch lights, on new Rago Fabrication Extension brackets. 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Replacing 3inch EVERGEAR clear lens ditch light pods w/ yellow lamix-x In progress: 4th, 5th, and 6th set of off road lights Electrical components and wiring purchased, not started -roof rack scene lighting - EVERGEAR ea. 1,350 lumens, 30w, 3-¾" round floods. Custom, side mounted w/ galvanized flat bar And -roof rack upper ditch lights - 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Bar clamp mounted to front corners And -roof rack reverse amber pods / secondary hazard lights. 20W 2000Lm 2-LED Spot Beam. Bar clamp mounted to rear side And -roof rack F1 smoked chase light w/ lighting effects. Custom bolted to rear side -POR15 rust proofing line-up, 3-step process PAUSED until 70⁰ weather Bought, in the garage queue: -BlueFire 6-Circuit Fuse Block with LED Indicator & Protection Cover -Blue Sea Systems 100A Circuit Breaker w/ reset lever -Rust prevention •New can POR15, 2x Black Fluid Film, long spray nozzle attachments, 2x PB Surface Shield, 1x Chainwax •partially used POR15 Degreaser, Metal Prep Wanted - PerryParts or Wheelers bump stops, self fabricated limb risers (seasonal, removable), 1" body lift, powder coated center winch bumper w/ large bar (got no tss), rear steel bumper w/ tire carrier for an LT285 Kumho on steely, sliders, bolt on cat shields
    Thanks for this
     
    djwantke, Jan 13, 2025 at 3:01 PM
    #9
  10. Jan 13, 2025 at 3:03 PM
    #10
    djwantke

    #10
    djwantke New Member

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    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting Feb. 13/2024: New ditch lights, on new Rago Fabrication Extension brackets. 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Replacing 3inch EVERGEAR clear lens ditch light pods w/ yellow lamix-x In progress: 4th, 5th, and 6th set of off road lights Electrical components and wiring purchased, not started -roof rack scene lighting - EVERGEAR ea. 1,350 lumens, 30w, 3-¾" round floods. Custom, side mounted w/ galvanized flat bar And -roof rack upper ditch lights - 3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Bar clamp mounted to front corners And -roof rack reverse amber pods / secondary hazard lights. 20W 2000Lm 2-LED Spot Beam. Bar clamp mounted to rear side And -roof rack F1 smoked chase light w/ lighting effects. Custom bolted to rear side -POR15 rust proofing line-up, 3-step process PAUSED until 70⁰ weather Bought, in the garage queue: -BlueFire 6-Circuit Fuse Block with LED Indicator & Protection Cover -Blue Sea Systems 100A Circuit Breaker w/ reset lever -Rust prevention •New can POR15, 2x Black Fluid Film, long spray nozzle attachments, 2x PB Surface Shield, 1x Chainwax •partially used POR15 Degreaser, Metal Prep Wanted - PerryParts or Wheelers bump stops, self fabricated limb risers (seasonal, removable), 1" body lift, powder coated center winch bumper w/ large bar (got no tss), rear steel bumper w/ tire carrier for an LT285 Kumho on steely, sliders, bolt on cat shields
    djwantke, Jan 13, 2025 at 3:03 PM
    #10
  11. Jan 14, 2025 at 2:13 AM
    #11
    vthoky

    #11
    vthoky [OP] New Member

    Joined:
    Aug 6, 2024
    Member:
    #42053
    Messages:
    357
    Gender:
    Male
    Virginia
    Vehicle:
    2024 TRD ORP
    Trailer connector relocate, tint, work lights, Pro wheels.
    Thank you all! And thanks dj for the link and videos.

    I've got some work to do this weekend... :^)
     
    vthoky, Jan 14, 2025 at 2:13 AM
    #11
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Products Discussed in

Performance Tool W2935 Stainless Steel Wire Insertion Tool - Piercing for 1/4" Wiring Hole
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