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<blockquote data-quote="smashedpumpkins" data-source="post: 7716939" data-attributes="member: 603266"><p>So I&#039;ve done a lot of reading and am curious about a few things. I have two amps... A Sundown Audio 100.4D and 1000D. (Speaker and Sub Amp) I installed my system after a week of torture but everything is working now except for some annoying engine whining. I read online that the amps should each have their own ground. Right now I have a 0 gauge split in half to the two amps for grounding. Could this be my problem? The RCA wires are on the opposite side of the power wire and get near each other by the amps. I separated them as a test but the engine noise remained. The voltage reading at the battery is within plus or minus .02 of at the amps which from what I read is perfect. (Probably the multimeter bouncing around a little) The whine isn&#039;t horribly loud but if I turn the volume down you can definitely hear it whine with the engine. At low volumes it&#039;s noticeable. Is it possible to eliminate all engine whining? What else might be my problem? Thanks</p></blockquote><p></p>

[QUOTE="smashedpumpkins, post: 7716939, member: 603266"] So I've done a lot of reading and am curious about a few things. I have two amps... A Sundown Audio 100.4D and 1000D. (Speaker and Sub Amp) I installed my system after a week of torture but everything is working now except for some annoying engine whining. I read online that the amps should each have their own ground. Right now I have a 0 gauge split in half to the two amps for grounding. Could this be my problem? The RCA wires are on the opposite side of the power wire and get near each other by the amps. I separated them as a test but the engine noise remained. The voltage reading at the battery is within plus or minus .02 of at the amps which from what I read is perfect. (Probably the multimeter bouncing around a little) The whine isn't horribly loud but if I turn the volume down you can definitely hear it whine with the engine. At low volumes it's noticeable. Is it possible to eliminate all engine whining? What else might be my problem? Thanks [/QUOTE]

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