Speaker Polarity Question

[xTheRebelx]

I just bought new Kicker Speakers and would like to know what color is the positive wire for all 4 doors. I have a 2002 Ford Explorer Xlt 4.0 V6

i looked at wiring diagram that was posted but cant seem to understand it.

-thanks.

 

[loudsport]

when i changed mine i notices that one of the wires in each door had a line and i just had to make a decision to make all negitive or positive going by that. i did it where all the wire with the line was (-) and it sounds good in my 04