System is about 10 years old, charged with R134a and recharged last week. Temp before having it checked was 47. Regular vents are closed. I also verified the heater core is closed.

Door seals have been replaced but still leak. Wind noise and after washing the car, I wipe out the water that splashes the interior. Red in color, both interior and exterior. It keeps blowing cold so its not freezing up. I'm unsure about how much insulation but I would tend to think its minimal. It may be as good as it gets.