2010 Mazda MAZDA3 wipers, windshield & visibility problems

Vehicle with continued issue with melting dashboard. Requires very frequent cleaning of the inside of the windshield due to the substance build-up from the daily heating in the florida climate. During the day the glare from the sun reflects back onto the windshield causing it to be very difficult to see. Polarized sunglasses seems to minimize the issue. At night, certain lighting also highlights the problems especially when sunglasses are not appropriate.

I am the original owner of this vehicle, purchased brand new. In january 2010. The heater when turning on, made a loud clicking sound for approx. 20- 30 seconds, each time. Upon research on the internet, local mechanics, I found out the heater blend door actuator is the problem. I was going to replace it, but upon further investigation I found that this heater assembly is not only used by mazda, nissan, toyota, chevy, ford, and lexus. This is heater is known to have this design error.