• Does the amp turn on and push normal speakers? Does the sub work on another amp? We need to know what specifically "isn't working". Is the amp turning on and the speaker not moving? -If so, try other speakers, try another amp, etc in an attempt to figure out what isn't working. Then you can troubleshoot down from there.
  • ground connection is much more important than most realize, can't say for sure but it is common... if the amp is lighting up then you might have the outputs turned off at the deck or rca's are disconnected

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