Sorry to hear about your situation. When I lived in the South West US, all cars had a dashboard cover made out of a tight weave, edged rug material. Without the cover, the dashboard melted and cracked in less than a year. If you are unable to adjust your parking orientation, or use a windshield cover to block the sun, a dash cover (like dashmat.com) might work for you. Seems they come in a variety of materials now. I'm not affiliated with any vendor of these products.