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Old 06-03-2014, 03:08 PM   #1
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Location: Barbourville
Region: Kentucky
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Mach 460 Humming Noise

I have a 2004 mustang gt with the mach 460 system and sometimes it will randomly start a humming sound in the rear speakers that goes up and down with rpms but I can make it stop if the engine isnt running or just powering the head unit off. What is weird is sometimes if I lean back in the seat like I am reaching for something in the back it will stop and sometimes if i just move around in the sink I can make it stop or it will get louder or quieter. Would there be any ground wires in the seat brackets and if so is there anything I need to watch out for if I have to take the seat loose and check the grounds?

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Old 06-18-2014, 12:20 PM   #2
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Yeah more than likely check your grounds

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