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searched but could not find a definite answer...

i recently put my stock springs back on and when i plugged up my subs back i got engine noise all of a sudden....

when i turn the volume of my cd player all the way down i can hear the beat of my engine... or when i put in a cd i can hear the the cd loading thru my subs... this wanst a problem before...

what could the problem be??? could it be my rcas??? could it be something that was pulled off when they put my springs back on? or is it the amp?

 
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Not sure what springs your talking about but if its suspension, that has nothing to do with it. I would check ur RCA's first, make sure their not touching each other or metal, that disrupts the signal and sends static through the speakers. Or if ur RCA's are near the power source, that could be the prob too. Lastly i would consider it being the amp but if you have never had problems with this before, i would definetly check all the wiring. If none of that works then... out of luck cuz im still a newb =D good luck!

 
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check and see if your RCAs are running along the power cable or twisted around it.

 
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is the amp lowpass filter on?