whats up with the engine noise

Most likely you have a bad ground on your H/U. Instead of using the factory default, run some wire down to a piece of the chassis, but try to keep it as short as possible.

 
Originally posted by dreid do you hear a whining noise as you idle or take off that gets louder with acceleration?? your alt might be shot my friend
doubt it---- best to find where the noise is getting into the HU---------- my advice would be to remove the HU from the dash and connect power------- if noise is still there next would be to pwer it with a isolated supply [ battery or inverter]
 
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