Think about what is going on. When you add an extra electrical load (turning something on), the charging system must produce more voltage to compensate. This is controlled by the computer, driving the alternator field circuit. What you are seeing is the lag time between the computer noticing the extra load and the charging system producing the extra power. An extra ground can help, it could be normal, or it could be an indication of a bigger problem. Try another ground (doesn't cost much or hurt) then if it's still there, have the starting/charging system checked.
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2004 Dark Plum Base with windows tinted, cabin filter, silencers removed, fog lights, 18\'s, all Red taillights, Blaine\'s struts, modesty cover, color-matched center dash, 06 rear bumper
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