According to the service manual for the R53, it's essentially located in the same spot...I hear you, I go through this same train of thought when I am camping. I don't cook inside the trailer and use an outdoor kitchen so always keep most food items in the trunk. I park the Pathfinder backwards very close the the trailer so we open/close the hatch 20-30 times a day.
You could check if the chime thingy can be disconnected, you need to remove the rear bumper cover to get there.
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