idk exactly.. but you can look at each of your speakers and write down the color of the wire going to it.. it will be the same color wire at the connector on the dash.. so now you know ,which wires go to which speaker. when figuring out (+) and (-) , the wire with a black line on it should be the negative. now after you have all the speaker wires figured out, the only two wires left at the dash should be a red (power +) and a black one (ground)....
Go here www.the12volt.com they have your diagram for free.
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