Looking at it, its exactly how mine is....
It shows wires running overhead, but they would have to snake around the front window, then up over the door, then back down the sides. Virtually impossible to fish through.....
The bottom pic, shows the red wire twist connector, connecting the furnace, and upper lights. There is also a big brown wire over head, but its hard to believe it would just do the stove exhaust fan and center light, why run the red up at all. 1 more light on the brown circuit would be fine....
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