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Help needed - new JVC head unit powering down w/ volume and bass
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<blockquote data-quote="muchmany" data-source="post: 8860422" data-attributes="member: 690028"><p>Yes, the power wires' colors don't match from the dash to the new harness. However, I tested them and the wire I'm treating as the constant 12v is powered all the time and the wire I'm treating as the switched is only powered when keyed, so I'm good there. Also, there is one slightly thicker gauge wire (the constant) and that matches up with the only wire of that gauge on the harness. I think the PO just used weird colors.</p><p></p><p></p><p>If it is indeed from a poor ground, how would I test for a voltage drop while the head unit is playing and I turn up the volume? What is the solution, running a new ground for the head unit or doing a big 3 ground upgrade under the hood or both?</p><p></p><p></p><p></p><p>I could really use some more advice from anyone else if they have ideas? Thanks</p></blockquote><p></p>
[QUOTE="muchmany, post: 8860422, member: 690028"] Yes, the power wires' colors don't match from the dash to the new harness. However, I tested them and the wire I'm treating as the constant 12v is powered all the time and the wire I'm treating as the switched is only powered when keyed, so I'm good there. Also, there is one slightly thicker gauge wire (the constant) and that matches up with the only wire of that gauge on the harness. I think the PO just used weird colors. If it is indeed from a poor ground, how would I test for a voltage drop while the head unit is playing and I turn up the volume? What is the solution, running a new ground for the head unit or doing a big 3 ground upgrade under the hood or both? I could really use some more advice from anyone else if they have ideas? Thanks [/QUOTE]
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Help needed - new JVC head unit powering down w/ volume and bass
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