Old detached garage, only GFCI outlet is on the outside wall around back, nowhere close to a spot I could realistically run conduit to reach the Bolt where it actually parks. Only workable path I've found is running the charging cord through the side window, cracked open maybe an inch and a half.
Portland winters mean rain basically nonstop from November through March, so I want to do this right instead of just closing the window on the cord and hoping. I've seen people mention foam weatherstripping, split rubber gasket tubing, even people cutting a notch in a piece of plywood to seal the gap. Also worried about mice getting in through whatever gap is left, we've had them in the garage before. What's actually held up through a real wet-climate winter and not just looked fine in a photo from a dry state?