help needed fast?

[Calikid 5,000+ posts]

ok i had my system hooked up for like two weeks and everything worked perfectly. until one day when i turn on the stereo my subwoofers had a weird noise coming out of them. also my speakers that are hooked up to my receiver didnt work. now when i disconnect my RCA's from my amplifier i can hear the speakers from the receiver but when i hook the RCA back in to the amplifier, the speakers dont work and some weid noise comes out of the subwoofer. //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif :furious: //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif :furious: //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif :furious:

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[Superior*Bass* 10+ year member]

check your ground