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Message: <blockquote data-quote="MECHMAN" data-source="post: 7514635" data-attributes="member: 595065"><p>Looking at 80a per 1000w, so 2200w is 176a. You have a 105a or 130a alternator on your truck, not enough for your audio alone. A 200a with an additional AGM battery would be OK, a 270a would be better provided the low-speed charging is up to par. Our 99 Chevy 2500 draws about 35a just idling with nothing on, way more (80a+) when the AC or heat, headlights, wipers and other electrical like brake lights are pulling power.</p></blockquote><p></p>

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