Stop in for a cup of coffee

I put the car cover on it, and turned the heat on in the garage. I was thinking of what I should do to it over winter and Im going to take care of the wiper pivot leak and rear window leak. I dont want to pull the rear window, but I think it needs to be pulled and resealed. but I was wondering if I could just shoot byutl sealant around the gasket...
stop driving it when it's crappy out - problem solved :D