Extended Rain Guard?

Hello Everyone.

Recently I decided to make living in my 2019 Tacoma TRD Sport Double Cab a reality. It’s been doable….but also miserable. lol. One of the main things I wasn’t messing around with was temperature comfort. For that reason I installed a 12,000 BTU Midea Duo A/C in the back drivers side of my truck. I removed the backseats, passenger seat and all unnecessary plastic parts. I used a 2” metal hole saw and drill right through the back of my cab,(probably a bad idea) and installed a grommet in order to run the drain and electrical cord to the bed where I power the unit with a Honda generator. I then built a platform consisting of 2×6’ boards and some pretty expensive plywood. This particular A/C comes with a dual hose setup. Within the main hose is an intake side and exhaust side. I experimented with another windowless A/C that was much cheaper and was instructed by HVAC technicians that if I wanted this to work, I needed a dual hose setup. It works great! Definitely overkill, but great!

I cut and modified the window adapter for the hose to fit within my window track. Everything fits as snug and tight as it can be. My only issue is rain. It isn’t terrible if I know the rain is coming and can face that side of the truck away from the wind/direction of rainfall. I have weather tech rain guards but they’re the “low profile” version and only stick out probably about 1.5”inches. I had to remove the rear drivers side one in order to fit the adapter within the window track. Even with the guard installed the rain would still drip and land well before the top of the window causing rain to be able to drip within the vehicle. I’ve attached photos in order to illustrate what I’m talking about. I currently just have a towel stuffed in between the window and adapter to catch the drips. I would just put the plastic on the outside of the window at the bottom but in order for it to fit within the window track it’s best if it sits behind the window.

My question is, does anyone know of or can think of an idea that would allow me to install some sort of rain guard that would extend far enough out to prevent rain from dripping down the plastic and on top of the window? Ideally I would love to find something similar to like those plastic vent covers you see in houses that are a quarter circle meant to direct airflow. It could be something flimsy but still needs to be rigid enough to not get sucked into the intake side of the hose. I only run the ac when stationary. Any and all recommendations would be greatly appreciated! Thank you very much friends!

by dolfinator101