Most likely the additional 2 wires are a power and ground supply for your trailer. I recommend verifying all the wiring connections for both your Can Am Spyder and the Roll-a-Home trailer on the 5-way circuit to verify they are identical functions. With the 2 additional prongs running to the Junction Box # 3375601100 you should be able to remove the cover and follow the wires to verify they do go to the Brake Controller # 90195.
If this is what you have you will need the Adapter # MA69BR... view full answer...
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