Approaching my car today to leave work and I noticed a hairline crack in the dashboard. (!) I found this a little odd, given that my car A) Isn't GM B) Really isn't that old C) Has always had a sunshade protecting the interior.

I also have a small second one forming right next to it.

What method do interior places use to repair these things and how would I go about doing it myself (possibly?) It's an eyesore that needs to go, especially before it gets bad.