Dashboard Cracks

Oh great. This is what happens if you park your car during work days from 6 AM to 8 PM for several years. The dashboard cracks! It's because of the heat in the cabin during the day. I got three cracks on the passenger side dashboard and two on the driver side...

 

I already collected some information on the Internet on how to fix them though. I really hope I can fix this thing. I know I can't make it recover 100%, but I hope I'll do a pretty good job to make them un-noticeable...