Still trying to get a power wire through firewall..

[altima35pwr]

just put an amp in my gf's yaris and i used a nipple located on the passenger side of the car. If you pull off some of the carpet underneath the glove box you'll see it. You can easily feed the cable through and then just zip tie it to diff parts under the hood so it doesn't get tangled up in anything and looks clean.

[Slick]

Thats what I did. I ran a 8 guage the first time, then came back later and ran a 4 through the same grommet. It fit like a dream.

[othater]

Originally Posted by CTScott

There's a huge bushing on the drivers side where a large harness goes through:

I know this is a old post but I'm sure someone might be looking for a location in the firewall like I did.

This is the bushing I used, Thanks CTScott, worked perfect.

I used a fiberglass rodder and pushed it through slowly on the outer portion of the bushing,
tied on the power cable, wiped some car wash soap on it and it slid right in.

[TOLMACH]

Originally Posted by othater

I know this is a old post but I'm sure someone might be looking for a location in the firewall like I did.

This is the bushing I used, Thanks CTScott, worked perfect.

I used a fiberglass rodder and pushed it through slowly on the outer portion of the bushing,
tied on the power cable, wiped some car wash soap on it and it slid right in.

Thanks, very useful

(another solution)

I had similar problem some time ago and used @the hole@ proposed by 3cylTurbo (who recently posted his HB audio install here) - hole right above the ECU (square electronic block) on the passenger side - which also worked in my case I ran my wire to the amp under the passenger seat (in which case the hole on the passenger side worked out very well)

[TOLMACH]

Originally Posted by ezhacker1

that helped extremely!!! i gave up trying to go through the firewall, even tho i was 90% done with removing wiper and tray.

go through the door grommet outputted it right next to the door sill cover excellent. thanks a bunch.

Thanks for the idea, but the loose underprotected live wire does not look good ((

[lasermn]

Originally Posted by LtNoogie

I paid a stereo installer $40 to drill a hole through the firewall under the dash and put a 1/2" grommeted hole there. I am able to run two 4gauge power wires, and three sets of wires for gauges.

It was a very easy $40 to part with considering how fast he got it done and how I had no clue how to do it safely.

Would you please include a photo of where the hole was drilled or add a detailed explanation of WHERE the hole was drilled? I'm assuming the hole was drilled from the firewall side into the passenger compartment.

Finally, I'm through the firewall on the passenger side; I used the grommet hole designed by Toyota just above the ECU. I'll add detailed instructions on how I finally got through & include annotated photos this weekend.

I had to go to a junk yard & look at wrecked Yaris that had the engine & ECU already removed. When I saw the grommet/hole in the firewall I then knew what to look for from the engine compartment & from the passenger side under the glove box.

[fnkngrv]

If I can I will share a photo or two of mine. Could be the weekend though until I can.

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[fnkngrv]

Here are a couple pics of the factory grommet holes on the passenger side.







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