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Chances are good you dropped off one of the cables OR got a negative cable on the positive side. Easy to do. Did you mark the cables well before you took them off? Everything else work? If you still need more assistance, please take a photo of the cables and attach it to your post so I can see what you have. All follow ups are included in our fee.
Just checking back to see if you were able to get this resolved or do you still need some input from me here?