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Message: <blockquote data-quote="Lasherž" data-source="post: 8703967" data-attributes="member: 679555"><p>If you put a capacitor between the terminals for the light bar it will make the voltage drop worse as the cap charges due to leakage current since the last time it was charged and won't affect the voltage spike because the switch will separate it from the rest of the system along with the light bar. If you put it before the switch it won't, but putting it between the + and ground on the radio will be equally protective. The extra voltage isn't coming from the light, it's coming from the alternator dealing with the light and then not responding immediately when the light electrically disapears from the circuit so the effects of that are felt over the whole electric system of the car except for the now sealed off section including the light bar.</p></blockquote><p></p>

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