I recently have gotten a nice long crack in the plastic portion of the dash. It started at the defrost vent and is running towards the area directly above the radio/middle hvac vents. I'm sure it will continue to the vinyl part then stop. Is there any way I can try to mend this? Or should I just find another part? I was thinking about using a plastic welder except that that stuff looks really bad when it cures. My other thought was to get a dash mat and just cover it up too. What are your thoughts or experience with this?