The headliner on my 2006 Land Rover LR3 has started to sag. The spots are the corner spots of the sunroof so the most stressed areas on the headliner. I wanted to see what kind of experience you all have with this issue. Ive had this truck since new and it has around 130k miles on it, I live in the Chicago land area. Ive taken care of the truck since new and I am extremely OCD about the mechanical and cosmetic condition of the truck. What have you guys seen and done and would recommend? I know I need to replace it since this is most probably the foam backing becoming a powder, but cost wise and other options possibly?