[theminiv]

yer, you shouldnt have to use the Ac unit to sort this out.

I would use a cream window cleaner, rather than spray. Like windowlene or auto glym. - This will work better than the spray on ones.

I would stay away from rainX on the inside. I have learned a big lesson putting silly things on the windows of the car lol, and on the inside it will be hard to remove. - Get a chemical dehumidifyer as well, put it in the car overnight. Give it a few days to get working. U will be surprised what it coms out with!!