running a fi q 18 with a aq1200d, now things get iffy

[JuniorSPL 10+ year member]

i say they get iffy because i really dont know other than running 0 gauge what i will need for my install, my box is built and ready to go, sealed 7cuft give or take a lil for bracing and sub displacement. i was told by a local audio store that i would be needing around 45ft 0 gauge, power and ground and then big 3, then 2 distribution blocks, upgrade my batt terminal + connector to 2 0 gauge and 2 8gauge slots but for - im not sure what id need cuz my car runs off 8 and then id need 0 for the big 3 but yea a lil confused there. i have a jeep grand cherokee stock alt so yea any help is greatly apretiated

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[Buck 5,000+ posts]

You don't need 0 gauge ran to the amp if it your only amp, you could go with 4 gauge. I would do the big 3 in 0 gauge.