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Man. Great info!!!! I’m going add two small 4”? LEDs up front and 12” rear. Also going to add a couple small interior LEDs, but all will be switched. The ONLY extra draw this thing will run consistently is the two small fronts at night. I don’t like the stadium level lighting. Might add a second batt. someday, but not planning on it now. Thanks again!Welcome from Michigan.
That second battery won't solve your ills if the first is bad, so be sure to replace it even if adding a second. That second, when installed along with an isolator, is really only needed if you run a bunch of accessories and/or if you run your winch a bunch. It isolates all that to the auxiliary battery and preserves your primary battery for starts and for the 'finicky with low voltage' OE equipment (DCT, steering, etc.).