Ford Mustang Forum - View Single Post - Mach 460 ground/engine noise?
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post #9 of (permalink) Old 05-03-2012 Thread Starter
monkeymanx3
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Here is a short video of the noise it is making , today I will be trying all of your suggestions.Another thing a shop told me it could be is my aftermarket alarm that is installed might be pulling ground from a wire that its not suppose to reason being that my car only does this noise when the car is on also it does it louder as the car is idling.When driving at average speed of 40mph the noise decreases but remains.Another thing they said was that the Head Unit(stereo) could probably be sending out a bad signal to that specific amp and they said to ground the headunit chasis to the car chasis to see if that helps. Any how heres the video .03 cobra engine noise rear speakers - YouTube

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