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Radio Wiring for 07 Mack Granite CT713



Good morning

Does anyone have wiring chart for radio in an 07 Mack Granite CT713. I bought a new radio for my truck and upon going to install found all the wires going into the radio are all the same color. 

Thank you


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G'day David, can figure it out without diagram. There will be 3 main wires, constant battery+, switched ACC or IGN + and a ground, just need a test light/ circuit tester to find them, the rest should be speaker +/- which you can check using a 9v to find the pairs, speaker will crackle when you got the right wires. If you've got steering wheel controls, should be on a separate plug to the power and speakers. See how you go.


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