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<blockquote data-quote="kev7706" data-source="post: 603018" data-attributes="member: 557805">I am having noise issues with my 1997 Pathfinder.&nbsp; The following items have been installed:Alpine Head Unit (CD-9825) - installed by Circuit CityBoston Acoustics 2-way components (SL60) - installed by local shopThe head unit runs the speaker with the fade set to the front.&nbsp; When I turn the key to accessory, the stereo turns on and no outside noise is present whether the volume is on 0 or higher.&nbsp; However, as soon as the engine starts, I hear an annoying buzz from bth the mid-range drivers and the tweeters.&nbsp; If I set the volume to zero and rev the engine, the tone of the noise changes, sounding more like a whine.I consulted Circuit City thinking it was a ground issue, but they claimed that they used the factory ground and it was some other problem.At this point I am unsure of what to do as I know only about home audio and acoustics, rather than car audio.My only thought was that I needed something like<a href="http://www.crutchfield.com/S-xWRHBEhXTc2/cgi-bin/ProdView.asp?g=181150&amp;amp;I=003S15A" target="_blank">THIS</a>Thanks in advance.</blockquote>

[QUOTE="kev7706, post: 603018, member: 557805"] I am having noise issues with my 1997 Pathfinder. The following items have been installed: Alpine Head Unit (CD-9825) - installed by Circuit City Boston Acoustics 2-way components (SL60) - installed by local shop The head unit runs the speaker with the fade set to the front. When I turn the key to accessory, the stereo turns on and no outside noise is present whether the volume is on 0 or higher. However, as soon as the engine starts, I hear an annoying buzz from bth the mid-range drivers and the tweeters. If I set the volume to zero and rev the engine, the tone of the noise changes, sounding more like a whine. I consulted Circuit City thinking it was a ground issue, but they claimed that they used the factory ground and it was some other problem. At this point I am unsure of what to do as I know only about home audio and acoustics, rather than car audio. My only thought was that I needed something like [URL="http://www.crutchfield.com/S-xWRHBEhXTc2/cgi-bin/ProdView.asp?g=181150&I=003S15A"]THIS[/URL] Thanks in advance. [/QUOTE]

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