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<blockquote data-quote="katodevin" data-source="post: 2590435" data-attributes="member: 572271">Hi,I&#039;ve just completed an install using the following componentsPioneer 880 deckPower acoustik gothic 4 channelpower acoustik gothic 2 channelType R subFocal access 6.5 set4 gauge power wire distributed to 8 gauge in trunk14 gauge walmart speaker wireHere are the grounding procedures that I have taken.- Used 8 gauge wire to ground each amp to a well stripped/raw portion of the trunk floor.&nbsp; Ground wires are ~ 12-15 inches.- Grounded head unit to metal support beam behind the dash.- Used raw speaker wire to ground RCA breakout cables to the chassis of the head unit.Here is what I am experiencingA steady whine coming from both tweeters that does not change in volume or pitch.&nbsp; This is NOT present when the key is in the ignition and turned only 1 notch (even though the stereo is on).&nbsp; It only presents itself when the key is turned to the next notch (the one right before ignition).&nbsp; This noise also disspears when the RCA cables are unplugged from the amplifier.A variable whine that is seperate and distinct from the first whine.&nbsp; This whine varies according to the RPMs of the car and vairies in volume and pitch.Where should I start?&nbsp; Are these two seperate grounding issues, or are they stemming from the same source?This is my first install, spent over 25 hours doing it!&nbsp; Please help out so I don&#039;t cry.&nbsp; Thanks in advance, you guys are a huge help.</blockquote>

[QUOTE="katodevin, post: 2590435, member: 572271"] Hi, I've just completed an install using the following components Pioneer 880 deck Power acoustik gothic 4 channel power acoustik gothic 2 channel Type R sub Focal access 6.5 set 4 gauge power wire distributed to 8 gauge in trunk 14 gauge walmart speaker wire Here are the grounding procedures that I have taken. - Used 8 gauge wire to ground each amp to a well stripped/raw portion of the trunk floor. Ground wires are ~ 12-15 inches. - Grounded head unit to metal support beam behind the dash. - Used raw speaker wire to ground RCA breakout cables to the chassis of the head unit. Here is what I am experiencing A steady whine coming from both tweeters that does not change in volume or pitch. This is NOT present when the key is in the ignition and turned only 1 notch (even though the stereo is on). It only presents itself when the key is turned to the next notch (the one right before ignition). This noise also disspears when the RCA cables are unplugged from the amplifier. A variable whine that is seperate and distinct from the first whine. This whine varies according to the RPMs of the car and vairies in volume and pitch. Where should I start? Are these two seperate grounding issues, or are they stemming from the same source? This is my first install, spent over 25 hours doing it! Please help out so I don't cry. Thanks in advance, you guys are a huge help. [/QUOTE]

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