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  1. #1
    bluetybo's Avatar
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    How do I get 2 awg wire through the firewall?

    Hello, I was wondering if there are any holes I can use to get my power wire (for my amp) into the car from battery. Its 2 gauge wire, I cant seem to find any holes in the firewall. Any help is Greatly appreciated. Thanks.


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    06 A3 2.0 FSI, DSG, Brilliant Black, and I live in Canada, brand new to North America, I LOVE IT.(so far)

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  3. #2
    Olly_K's Avatar
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    not for 2 gauge.....jesus thats thick !
    i have a feeling you may be making your own holes for that one !

  4. #3
    Anito's Avatar
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    Have a good look around, there is normally a lug somewhere you can make use of.

  5. #4
    bluetybo's Avatar
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    thanks, has anyone used thicker wire when going through the firewall? Pics would be nice, is it easier to go from inside car to find a hole?
    06 A3 2.0 FSI, DSG, Brilliant Black, and I live in Canada, brand new to North America, I LOVE IT.(so far)

  6. #5
    ZeroK66's Avatar
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    No idea on the B7... but on my older B5 (2000 model) the ECU box sits near the firewall. I got 0 Gauge wire through the back of the ECU box. I had to take the cover off, run the power cable through there and down into the footwell.
    Facelift Imola S4 | Custom: K04's, Tubular Manifolds, 3" DPs-> 2.75" Catback | FMIC | H&R Coilovers + ARB's | Brembo 8-Pots | SS + DTS | 503HP/475lbs/ft | 1800W RMS

    Sold: Audi A4 (B5) 2.8 Quattro | Ivory Pearl
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  7. #6
    ash_s3's Avatar
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    why are you using 2awg cable? are you running about 12 amps or something??
    4 or 6awg is quite enough for most installs!

  8. #7
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    Yes I would also question the use of 2awg, this is only required for 2.5kw of power. Bearing in mind no such amp exists within a reasonable price range why make life difficult for yourself?
    2awg won't easily run along the door channels either.

  9. #8
    ZeroK66's Avatar
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    So 0AWG was overkill for my install then *blush*
    Facelift Imola S4 | Custom: K04's, Tubular Manifolds, 3" DPs-> 2.75" Catback | FMIC | H&R Coilovers + ARB's | Brembo 8-Pots | SS + DTS | 503HP/475lbs/ft | 1800W RMS

    Sold: Audi A4 (B5) 2.8 Quattro | Ivory Pearl
    Melted: Corrado - IHI 1.8 20vT: 343BHP

  10. #9
    easytease's Avatar
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    depends on distance, and currant (pull) of the amp(s) basically 4awg over a 5metre length is good for 1000watts RMS if its of a lowish currant
    1999 1.8 SE A4 100% standard tank, all green.
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  11. #10
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    I am in the overkill catagory then, i have "0" Wg in my B5 too

 

 

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