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Thread: Installing an Inverter in the trunk (2006 Mazda 3)

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    Default Installing an Inverter in the trunk (2006 Mazda 3)

    I'm looking at installing an 2000W inverter in my trunk and wondering if anyone has done this and has any tips like where to run the wires to the battery/alternator? I've looked for guides but haven't been able to find anything Mazda 3 specific.

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    Default Re: Installing an Inverter in the trunk (2006 Mazda 3)

    Also is it possible to wire it up to the fuse box under the passenger seat so I don't have to drill through the firewall?

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    Default Re: Installing an Inverter in the trunk (2006 Mazda 3)

    If you're planning on using the 2000W inverter to its max potential, then you're looking at pulling 166A (even pulling 1000W is a ton of power). You won't be doing that off of ANY of the fuse panels, and obeying ampacity rules, you'd need to run #0 cable to it. That's gotta come right off of the battery (fused). Either punch a hole in the firewall with an appropriate grommet or get a smaller inverter. The problem with too large of an inverter is that one day, you'll accidentally pull a whole ton of power and melt/set fire to things.

    Practically speaking, if you're not prepared to go through the firewall, stay below 250W. You won't want to pull more than 20-25A off of a cabin fuse panel. I mounted a 450W in my trunk with #8 cable going to it and it was directly wired to the battery.
    Last edited by morganc; 08-28-2018 at 11:35 PM.

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