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A possible for a second switch , would be for a ceiling light , so it can be turned on to light up for entry into a dark RV. Turn on the closest ceiling light and see if it can be controlled by a switch near the door.
Third switch , if you have power steps , could be an override to keep them out while parked .
No power steps ?
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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