Has anyone seen an issue with getting a car seat installed properly? I just transitioned to using the seatbelt method with my children's car seat and cannot get the seat tight enough to stay put. I have been to the fire department who is certified at installing seat and also another certified installer with the same result I am. We can all get the car seat to not move side to side but the issue is the car seat moving forward 4-5 inches. I have tried multiple car seats and 5 different vehicles and our Atlas is the only one that has this issue. VW is telling me that there is nothing wrong with the vehicle and is not willing to do anything to help fix the issue.