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Hey guys I just picked up a pack of led's and was planning to make an underglow light kit for my drift car.I'm running it from a 9 volt battery.does anyone know what sive resistor I should use.I plan to use 4 led's to light up both ends of a straw to create the underglow.also I am using a 3pk so if I plug it into the aux. On the reciever will that work?I would imagine you would need a bigger resistor right?most likely gonna just use a 9 volt though but any ides on sizes of resistors would be greatly appreciated.thanks in advance