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WC IN | The wiring harness is definitely a possibility.
Another thing to try is forcing software to the receiver to reprogram it. Go to info > keycard > Program target > GPS reciever (sometimes wording on this differs) > then choose whatever software version is available on your card (probably 3.XX)
If the wiring is all good it should reprogram. If it won't let you reprogram, I'd put my money on it being the "Y" harness like mentioned above | |
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JD Autotrac help.....
