One of my projects as soon as the weather stays above 80 for more than a day. 97° on Monday, 34° this morning...
For my Jeep and now for my T4R I bought two of these, laid them out, one in front, one in back, and cut them to shape. Took a few hours, but it eliminates all of the gaps between seats and even extends out to the doors and all the way up to the front seats. I very rarely use a third seat. Usually a drunken friend I DD for when we are out. Smooths out all seams and provides some insulation which is perfect for car camping.
https://www.tractorsupply.com/tsc/pr...bber-stall-mat