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Grounds ran to frame, swapped RCA cables, etc. Still noisy.
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<blockquote data-quote="longbedbob" data-source="post: 8606374" data-attributes="member: 673854"><p>Additional problem identified: Sound Ordnance sub amp had a defect allowing the slight alternator whine to permeate through the entire system. Replaced with a JL Audio JX 500/1 and that problem has disappeared.</p><p></p><p>Only remaining issue is some hissing that can't be heard when the truck is running and volume at 0. I have to dial it up to midscale before it overcomes road noise. But it does come through quite passages of music and when the truck is turned off.</p><p></p><p>I will be replacing the 8 gauge CCA amp wire with 4 gauge welding cable. Even though I'm realistically below the max amperage allowed for 8 gauge (and that's what the Infinity Reference 704A calls for anyway), I will open the pipes if, for no other reason, to have more current available for a planned 300-500 watt inverter install. I'll also shorten the 12v constant and accessory power wires. This should eliminate any power issues as the source of my static.</p></blockquote><p></p>
[QUOTE="longbedbob, post: 8606374, member: 673854"] Additional problem identified: Sound Ordnance sub amp had a defect allowing the slight alternator whine to permeate through the entire system. Replaced with a JL Audio JX 500/1 and that problem has disappeared. Only remaining issue is some hissing that can't be heard when the truck is running and volume at 0. I have to dial it up to midscale before it overcomes road noise. But it does come through quite passages of music and when the truck is turned off. I will be replacing the 8 gauge CCA amp wire with 4 gauge welding cable. Even though I'm realistically below the max amperage allowed for 8 gauge (and that's what the Infinity Reference 704A calls for anyway), I will open the pipes if, for no other reason, to have more current available for a planned 300-500 watt inverter install. I'll also shorten the 12v constant and accessory power wires. This should eliminate any power issues as the source of my static. [/QUOTE]
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Car Audio Help
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Grounds ran to frame, swapped RCA cables, etc. Still noisy.
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