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Message: <blockquote data-quote="Chevyaudio" data-source="post: 991600" data-attributes="member: 559770"><p>i would say that its might be a bad alternator, because just a HU causing your lights to dim is rare (to my knowledge). But it could be that there is an installation problem causeing you to have a voltage drop. So first take your car over to the local autozone and get them to test your alternator (they do it for free) and if it is a good alternator, check to make sure that the HU is installed properly. As for that setup, I don't think it will draw that much current being that 465 watts appears to be the audio systems RMS. And for the other things, like DVD changers and players, they dont pull much current at all so those arent really a concern.  But i would run a Yellow top under the hood just so you could use your eqipment while parked with the engine off.</p></blockquote><p></p>

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