The 3rd generation of the TL was known for dash cracks. I have owned this car over four years and been fighting the dash drying out. The products I use in the winter seem to last, but as soon as the warmer weather and sun reappear in the PNW, the protectants I use only last a few days to a week. I have used 303, Chemical Guys VRP, Griots. Nothing last! I bought a dash cover a few years ago and it looked terrible. The TL’s dash has too many angles for the topper to sit flat. I have Leatherique rejuvenator in my garage, do you think it would work on plastic?