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Installing Subs and need help identifying wires??

4K views 2 replies 2 participants last post by  rube 
#1 ·
I am installing the amp and have a question identifying wires? I have a double cab with jbl audio system. I am almost done with the install. I am connecting the line out converter to the subwoofer signal and can't identify which wire is positive and which is negative? They are usually red (positive) and black (negative) but in this case they are white and blue? Can anyone help me identify the wires?
 
#2 ·
White for positve (+)
Blue for negative (-)
Refer to diagram below. Good Luck!!

 
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