HELP---- hookingup stereo keeps blowing fuses

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stereo was taken out 2 put new one in - after connecting all wires and turning stereo on the fuse blew put another fuse in and it blew it 2 need 2 know if anyone can tell me why - or maybe send me a diagram of what the wires coming from the dash means so I can match them up to the plug on the back of the cd player and do it myself thanks for any help anyone can give me