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    do i need the big 3

    What do I do to connect my amps power wire to my fuse box on my car







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    Re: do i need the big 3

    Your amps power wire goes to your battery.. Which should have an external fuse in it near the battery

    The big 3 consists of a wire from:
    1. Alternator + to battery + (use factory master fuse or an external in-line fuse)
    2. Battery - to chassis ground
    3. Engine block or alternator case to chassis ground




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