I have the same unit and did this upgrade myself, very simple once it's planned out. I have recorded my steps and included photos in the mods section. Have a look, it's a slick install. I also recently added a TV swing arm mount to the exterior of the unit just above the exterior power plugs, now I can take my TV outside and mount it and watch movies with my family as if it were a drive-in, and since the awning is above it, it's protected against light rain.
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