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Car Audio Discussion
General Car Audio
Impossible Speaker Whine Issue
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<blockquote data-quote="RobGMN" data-source="post: 8856256" data-attributes="member: 683408"><p>oops. i see that rereading your o/p.</p><p>But it still seems you've narrowed it to the head unit by breaking the chain with your phone.</p><p>Are you able to isolate the HU and power it separately to see if the whine is being introduced through the power lines?</p><p></p><p>Also, in the OLD days of car audio, noise was commonly introduced from RFI radiated by the ignition wires and picked up by the antenna.</p><p>Your alternator may have a noise filtering issue that's causing a similar problem. Can you pop the stock one back in to see if the noise goes away?</p></blockquote><p></p>
[QUOTE="RobGMN, post: 8856256, member: 683408"] oops. i see that rereading your o/p. But it still seems you've narrowed it to the head unit by breaking the chain with your phone. Are you able to isolate the HU and power it separately to see if the whine is being introduced through the power lines? Also, in the OLD days of car audio, noise was commonly introduced from RFI radiated by the ignition wires and picked up by the antenna. Your alternator may have a noise filtering issue that's causing a similar problem. Can you pop the stock one back in to see if the noise goes away? [/QUOTE]
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