Yes I have the rubber Mopar mats and no they don’t fit without modification. I cut probably 3 inches off the front edge of the mat to make it fit. It looks fine and those inches were way under the seat anyway. There’s still plenty of room for a rear seat passenger’s feet.Do you have the all weather floor mats? If so do they still fit without modification in the rear?
All in I’m happy I waited for this mount, I think it’s a good solution.