Cable route from engine bay to back seat

Cable route from engine bay to back seat

Postby scatter on Sat, 11 May 2019 9:23 +0000

Hi all, I’m trying to run a cable to a dual battery in the back of the dual cab. I’ve hit a bit of a brick wall and I’m wondering if anyone has some advice. So far I’ve run the cable from the backseat under the trim on the floor adjacent to the door but I’m struggling to find a route from the front passenger footwell to the engine bay. I’ve tried to pull the wheel arch guards out to get a better look but the securing tabs are being stubborn - is there a trick to getting them out? I’d have thought they’d just pull out with some pressure but I feel like I’m going to snap one they’re that tight.

Cheers, Sam
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Re: Cable route from engine bay to back seat

Postby sa_lux on Sat, 11 May 2019 9:33 +0000

G'Day Scatter

One word 'Firewall' this is what it is designed for :)

Start in the engine bay, lots of gr8 content on this site about getting wires thru. the FW.

BTW - Dont just run 1 cable, I initially ran 3 x
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Re: Cable route from engine bay to back seat

Postby scatter on Sat, 11 May 2019 10:06 +0000

Thanks mate, I should have been more specific - I’m running two heavy cables (6b&s) and the firewall grommet nipple on the main grommet is too narrow for even one of the cables. I’m wondering if anyone has an alternate route, or do I need to start cutting into the grommet?
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Re: Cable route from engine bay to back seat

Postby TOYZX on Sat, 11 May 2019 2:10 +0000

Lift the carpet under the front seat and you'll find gromets in the floor. I've done a couple of compressors under the front passenger seat on the n80s and have run wiring and air lines through the floor there.

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Re: Cable route from engine bay to back seat

Postby Critter350 on Thu, 16 May 2019 12:05 +0000

Just checking in here Scatter - is that a lead acid battery your installing in the back seat? You know they produce explosive gasses, right?
Can be managed, but if you didn’t know...


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Re: Cable route from engine bay to back seat

Postby scatter on Sat, 18 May 2019 1:56 +0000

Appreciate the concern. It’s a full river agm - sealed unit.
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Re: Cable route from engine bay to back seat

Postby Myralga on Sat, 18 May 2019 9:18 +0000

So passenger side fire wall grommet. Main wire harness has 2 “nipples” on it cut the tip off and run a trace wire through initially anything slippery will help pull the big wires through. Be it soapy water. Etc.

Don’t be worried they stretch.
Between those two nipples and the small grommet right against the side panel I have a total of 3 sets of 7 core wire plus 2 6mm twin cores going through and coax for the aerial.
Each of those 7 core wires are 4mm so there huge. As big or bigger then 6 B&S.
So yeah enough slippery you can get anything through.

Why so many wires.....
Linx
water pump
2 sets of cigs
Power for usb
Uhf
Compressor
And some spares for future development lol



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Re: Cable route from engine bay to back seat

Postby sa_lux on Sat, 18 May 2019 10:15 +0000

G'Day Myralga - Gr8 write up, but his cables cannot make it thru. the firewall - notice OPs 2nd post - " two heavy cables (6b&s) " in reply to my 1st
Looking to buy

- 54" Led Light Bar to Roof Rack mounting kit
- Roof Top Tent
- Tub carrier -> http://ozutz.com.au
- e Lockers
- 12v / 240v Fridge -> http://www.ebay.com.au/itm/221680219455

Roll on rolux
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Re: Cable route from engine bay to back seat

Postby Myralga on Sun, 19 May 2019 1:25 +0000

sa_lux wrote:G'Day Myralga - Gr8 write up, but his cables cannot make it thru. the firewall - notice OPs 2nd post - " two heavy cables (6b&s) " in reply to my 1st


Sorry should have made that a bit clearer.

7 x 4mm wires bundled in the additional outer sheath is bigger then a single 6 B&S cable.

You can make it. Done similar on other customer builds.

If you can’t you can always slice the grommet a little to give a bit more wiggle room.


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Cable route from engine bay to back seat

Postby Critter350 on Mon, 20 May 2019 8:12 +0000

I don’t like ‘slicing’ the grommets because they split and don’t seal any more.
A plastic knitting needle (50c from the salvos), rip the end off and tape the cable(s) inline.
Pokes a nice neat little hole and then stretches the rubber, so no tears or tears [emoji24]. Image


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Re: Cable route from engine bay to back seat

Postby rjo89 on Mon, 20 May 2019 8:36 +0000

And spray the grommet and cable with WD40 Lithium, works a treat
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