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Old 05-01-2019, 02:03 AM   #1
Tri6Oraxus
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Join Date: May 2019
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Location: Kirksville, MO
What I Drive: 2005 Focus ZX4 ST Black

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Question Whine at higher volumes

I drive an 05 ZX4 St with the sony system. I have beefed up the speakers, added bluetooth to the stock headunit, and slapped some subs in the trunk. Naturally, I like to crank my system when driving around, and I have noticed a rev whine. I have better grounded the head unit, the cigarette lighter(as that is how I power my bluetooth) and more. Yet I still have whine. any tips?


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