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Thread: Big 3 Upgrade

  1. #1
    Constant Bitrate
    Join Date
    Mar 2006

    Big 3 Upgrade

    I plan on doing this upgrade, but I don't think I have enough wire for the alt to battery positive right now. I have enough for neg. battery to chasis and engine to chasis. I want to go ahead and wire these 2 up today and the rest of my wires. Would it be a problem to my car/alternator if I didn't upgrade it while my system was operating? I'll have a carputer, 800 watt peak amp, 500 watt peak amp, audiocontrol xover, xm direct running off the distro if that helps! Thanks for any response!

  2. #2
    Join Date
    Jul 2001
    Why wouldn't it? You're not pulling any extra current by grounding everything better. Oh, don't forget to put a fuse between your battery and your alternator. You'll probably need to use ANL fuses.

  3. #3
    Maximum Bitrate DJiK's Avatar
    Join Date
    Apr 2005
    Los Angeles (Winnetka), CA

    Use the Following Table

    I can't guarantee accuracy, but it came with my Audiobahn amp:

    Name:  Power Cable Calculator.JPG
Views: 9974
Size:  32.6 KB

    The rest could be found on their website. Choose Tech Tips.
    Page 6 of 52.
    For Sale: Carputer (CarPC) & RCA Y-Adapter
    Newsflash: Take a look at my unsold stuff above, thanks!
    Up Next: Make an OBD to Serial cable & Redo the "MMI buttons"

  4. #4
    Join Date
    Mar 2004
    Little Elm, Texas
    another few resources:

    Hope this helps.

    Also, you can never have too big of a ground wire. It never hurts to have a ground that's bigger than the power. Just a power that's bigger than a ground when the power is the size needed. Ground should be at least the same size of the power, never smaller.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

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