seems like that lens should pop off with a small screw driver, prying gently around the edges.
Do you have a panel of switches inside the coach? Something like this...
Sometimes, like on ours, there are active switches that aren't marked. You just need to figure them out.
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Jeff & Sandi (and Teddy - 7lb Schnorkie)
2018 Montana High Country 305RL
2015 RAM 3500 Crew Cab 4x4 DRW
Demco Recon Hitch on RAM Puck Ball
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