Firewall wire routing on Manual 2012 MZ3 - Page 2 - 2004 to 2016 Mazda 3 Forum and Mazdaspeed 3 Forums
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post #11 of 14 (permalink) Old 05-27-2014, 09:35 AM
toyojake
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Quote:
Originally Posted by Stikyballs View Post
I recently tried this on a 12 3 skyactiv auto and it works as well. Although its a bit annoying with 0g wire, using thinner wire or rope and taping it together and running it through the interior of the car first to the engine is the easiest way i found. I did lift my car up but i probably didnt have to. As long as it goes through you should see it.

This is coming from inside the car through the steering column
Is it possible to punch a hole through that big grommet, and run the cable through it?

2010 CWP Sedan 5spd 2.0...mainly stock
69,000mi and counting
-E-focus RMM mod
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post #12 of 14 (permalink) Old 08-04-2014, 07:55 PM
Stikyballs
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Originally Posted by toyojake View Post
Is it possible to punch a hole through that big grommet, and run the cable through it?
You can try to but just to even get the wire in there is a pain. Once you see where the grommet is you can make that decision.
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post #13 of 14 (permalink) Old 07-17-2015, 07:00 PM
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Sorry to resurrect an old thread, but I'm about to do a Water-Methanol install in my 2010 Speed 3 and am going to be using the steering column wiring trick. I'm surprised, however, to see that nobody has thrown a grommet around these power wires, or at least used some wiring loom to protect them. If one of them shorts out on the body panel right there because the wiring insulation is worn through, I think they'll have a bad day. Isn't anyone concerned about this?
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post #14 of 14 (permalink) Old 03-19-2017, 11:52 PM
ThisNameIsTooLongForYourF
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First Post, Necro Post.

For those looking for the easy way (and much, much safer way, IMO) to run power for an amp on the 2010-2013 platform, just use the AC passthrough behind the glove box. I just routed oversized 4g through there and was able to fit the plastic bracket back on with no trouble.

Remember, there is a secret screw on the bottom of the glovebox, and the only way to get at it is to remove the door. If you're small enough (like, child size), and have a tiny screwdriver, you don't even need to remove the glovebox. I am not, but you may have more luck.

Yes, it looks like ass compared to hiding it in the steering column grommet, but I didn't have to lift my car, and it was done in ten minutes.


One more thing: with either method, use some sort of wire protector (split loom, flexwrap, etc).
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