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Installed JVC HU w/ Maestro RR Getting White Noise -- Please Help
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<blockquote data-quote="beefey" data-source="post: 8856725" data-attributes="member: 689804"><p>Hi All-- </p><p></p><p>I bought a JVC KW-M780BT HU because I wanted Android Auto. The vehicle is a 2014 GMC 2500 no navigation with Bose sound. </p><p></p><p>The speakers and amp are factory Bose. </p><p></p><p>Initially, I used a Crux interface kit which performed flawlessly except I couldn't stand that it didn't have RAP support. So I just changed it out for a Maestro RR. </p><p></p><p>I'm using the Maestro HRN-RR-GM5 harness and feeding audio via low level inputs to the factory Bose amplifier. </p><p></p><p>The problem: I'm getting a very very high pitched whine out of the tweeters on the stereo. I did not get this with the GMC factory radio OR the Crux interface kit with the JVC HU-- JUST with the Maestro RR. Originally I was running high level speaker outputs on the RR to the amp and the whine was far too loud. Now with the low level it is less but still very pronounced. </p><p></p><p>When I turn the HU off the noise goes away. It sort of varies with engine RPM-- sort of in and out but not directly proportional. </p><p></p><p>Any ideas?</p><p></p><p>Thank you,</p><p>Beefey</p><p></p><p>REF: <a href="https://www33.jvckenwood.com/pdfs/download.php?Model=KW%2DM780BT&File=B5K%2D0943%2D00&_ga=2.203253777.1866673016.1694565323-566774999.1692073427" target="_blank">https://www33.jvckenwood.com/pdfs/download.php?Model=KW-M780BT&File=B5K-0943-00&_ga=2.203253777.1866673016.1694565323-566774999.1692073427</a></p><p></p><p>[URL unfurl="true"]https://www33.jvckenwood.com/pdfs/download.php?Model=KW%2DM780BT&File=B5A%2D4044%2D00A&_ga=2.161360061.1866673016.1694565323-566774999.1692073427[/URL]</p><p></p><p>[URL unfurl="true"]https://images.idatalink.com/corporate/Content/Manuals/RR-GMS/ADS-RR(SR)-GMS05+DS-IG-EN_20230412.pdf[/URL]</p></blockquote><p></p>
[QUOTE="beefey, post: 8856725, member: 689804"] Hi All-- I bought a JVC KW-M780BT HU because I wanted Android Auto. The vehicle is a 2014 GMC 2500 no navigation with Bose sound. The speakers and amp are factory Bose. Initially, I used a Crux interface kit which performed flawlessly except I couldn't stand that it didn't have RAP support. So I just changed it out for a Maestro RR. I'm using the Maestro HRN-RR-GM5 harness and feeding audio via low level inputs to the factory Bose amplifier. The problem: I'm getting a very very high pitched whine out of the tweeters on the stereo. I did not get this with the GMC factory radio OR the Crux interface kit with the JVC HU-- JUST with the Maestro RR. Originally I was running high level speaker outputs on the RR to the amp and the whine was far too loud. Now with the low level it is less but still very pronounced. When I turn the HU off the noise goes away. It sort of varies with engine RPM-- sort of in and out but not directly proportional. Any ideas? Thank you, Beefey REF: [URL]https://www33.jvckenwood.com/pdfs/download.php?Model=KW%2DM780BT&File=B5K%2D0943%2D00&_ga=2.203253777.1866673016.1694565323-566774999.1692073427[/URL] [URL unfurl="true"]https://www33.jvckenwood.com/pdfs/download.php?Model=KW%2DM780BT&File=B5A%2D4044%2D00A&_ga=2.161360061.1866673016.1694565323-566774999.1692073427[/URL] [URL unfurl="true"]https://images.idatalink.com/corporate/Content/Manuals/RR-GMS/ADS-RR(SR)-GMS05+DS-IG-EN_20230412.pdf[/URL] [/QUOTE]
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