Any1 know wether A or B is positive on JBL MK 2 sub

[300ZX Twin Turbo 10+ year member]

Doesnt have a reg + or _ it has A and b i assume a is positive but does any1 know?

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[misfit138 5,000+ posts]

According to this: http://manuals.harman.com/JBL/CAR/Owner's%20Manual/GTi%20MkII%20Sub%20OM%2005.pdf, red is + and black is -. Way to go against the grain, JBL. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif