That looks like our ‘06 Monterey, Robert, so it’s likely they are ground wires that go on the outside chassis battery’s negative post. See photos of our new and original battery setups.
I note that some heavy wires look loosened from the posts. Might I suggest when juggling battery wires that you keep the Main switches off; in your photo they are both ON (green). Also put a blanket over the solar panel on the roof. These steps can help with sparking and blown fuses when connecting wires.
Be sure to edit your Profile to add your Coach year, model, and engine to your “signature” so we know what rig we’re discussing when you post questions.
Joel
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