I couldn't figure out why, in my Trillium
5500, someone had cut out the entire short side of the front bench seat closest to the door, put a divider in the storage space under the seats and installed a louvered vent in the fiberglass in that space. Also, an electrical
outlet that only works with shore power. Imagine my surprise when the average small, cheap window air conditioner slid right in...
I haven't had it out to see how it works in 'real camping' but I'll report back with how it worked. If it does, I'll take a picture or two. Helen