33 replies to this topic

[thatTTguy]

hey all just decided to put all my old sound gear in the B4 and was wondering anyone know where the best place is to get through the firewall? There is a few grommets but they all look rather difficult...

Cheers
Adam

[Start]

I'd run it down the front passenger quarter panel, then into the cabin though the big grommets where the loom / abs goes.

just mean's you have to take the quarter panel off, 5 min job.

[thatTTguy]

Ahhh yeah sweet cheers for that, deffinately a better idea than my dads suggestion of "dont do that, just drill through the firewall"
...although the quarter panel was a barrel of fun getting off lol.

[Alex]

doof?

your firewall needs to be more like this.

[thatTTguy]

Now thats what i call TMIC heatsoak!

[CodeBurn3r]

I ran mine up next to the AC drip pipe.. fit perfect and didn't need to pissfart around removing panels.
Just another idea.

[Delete This Account]

I ran mine up next to the AC drip pipe.. fit perfect and didn't need to pissfart around removing panels.
Just another idea.

That's the best way on a Gen 2.

But completely different on the Gen 3.

The best way is on the left of the TMIC, below the brake booster, there's a rather large grommet with nothing running through it. Comes out behind the peddles, Easiest to get to both sides by far!
Don't even need to remove anything.

just mean's you have to take the quarter panel off, 5 min job.

...although the quarter panel was a barrel of fun getting off lol.

Take the quarter panel off? Are you serious?
That's the hardest/worst way I've ever heard to run a cable through the firewall.

[acres]

The best way is on the left of the TMIC, below the brake booster, there's a rather large grommet with nothing running through it. Comes out behind the peddles, Easiest to get to both sides by far!
Don't even need to remove anything.

That would be the right side of the TMIC
But correct. The gen2 also has this grommet and the rubber behind the firewall is also precut. Just pop out the rubber and the grommet and you have a hole which is also easily accessable from the cabin. Tis where I run all my wires

[Start]

Take the quarter panel off? Are you serious?
That's the hardest/worst way I've ever heard to run a cable through the firewall.

Its neat, I hate seeing a fully hectic 12 gauge wire running across my engine bay.

each to there own.

[Delete This Account]

Its neat, I hate seeing a fully hectic 12 gauge wire running across my engine bay.

each to there own.

Mine's covered in black conduit and is always following another cable, it's hardly what you'd call messy.

But if you want to take off a whole quarter panel to run a cable, it's up to you...

[SAV84C]

Mine's covered in black conduit and is always following another cable, it's hardly what you'd call messy.

But if you want to take off a whole quarter panel to run a cable, it's up to you...

U could always just pull ur inner guard out and run it that way but that would require taking ur wheel off...

[Delete This Account]

Here's where mine runs, the red dot that I creatively drew in Ms-paint is were the grommet is.

[Morgan]

The best way is on the left of the TMIC

Oh cool. I'll just run it to the left of my TMIC then

[bobbyjimmy]

Its neat, I hate seeing a fully hectic 12 gauge wire running across my engine bay.

12ga? Is that for one of the speakers?

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12ga? Is that for one of the speakers?

haha yeah

8 gauge should be a minimum.

0 gauge is a bit of overkill though.

[aekOne]

Here's where mine runs, the red dot that I creatively drew in Ms-paint is were the grommet is.

what a mess

[Delete This Account]

what a mess

Yeah, but that was Subaru's fault and not mine.

[CodeBurn3r]

8 gauge is what i run.. 12gauge.. what are you powering... the ciggy lighter? haha
and mine is pretty neat, managed to hide it bu running it inside the chassis rail then comes out along the firewall for a few cm and up through the AC pipe.
fuse holder is attached next to the Battery.

I just made sure no matter what, nothing could wear the insulation off the wire and cause a short.. cause that would not be good at all.

also another place you could go.. but its a royal PITA if you stuff up is there is a spare blanked part in the grommet that the fuel lines run through on the firewall on the pass side.
through there its so stealth you would never be able to tell.. only thing is, its a PITA to get to, when i was trying, I pushed the grommet into the cabin.. took 2 hours to pull the sucker back out and into place.. never doing that again.

oh and as for removing inner guard.. getting those back on properly is a massive PITA! i have taken my car back to the smash repairer 2x now because it keeps popping out and doesn't sit right.. each time they remove the whole front end, try to re-align it but if you put one of those clips on just slightly off tap.. good luck, seriously hate those things.

Tom.. that's not your engine bay i hope?

[Delete This Account]

Tom.. that's not your engine bay i hope?

Why?

[thatTTguy]

Here's where mine runs, the red dot that I creatively drew in Ms-paint is were the grommet is.

Ahhh nice work Walts, loving the stealth black cable too
See the problem with running my cable through that whole would have been i need it on the passanger side as to keep it away from any of my signal cables, plus its to thick to run up the middle anyway, so down the side and under one of the little covers worked perfectly