Question about KX1200.1

[Vega 10+ year member]

The manual says use 1/0 gauge wire for the KX1200.1 but my car is already wired with knukonceptz 4 gauge and I don't want to have the whole car rewired. Can I just go ahead and use my 4 gauge?

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[jacka 10+ year member]

yes, you can use 4 gauge, but you should probably upgrade to 0.