Ok so my headliner is looking like someone had pulled the edges off of the headliner so you can see the padding underneath. What is the cheapest possible way to fix the headliner to looking close to new. It doesnt have to be perfect I just done like seeing the padding when I take off the t-tops or having the liner by the sail panels flapping in the wind?

 

If the backing isn't bad you can just go to a parts store and get some spray on headliner glue. I think it costs like $10, just spray it on the backing and the pull the fabric around it. You'll have to take off the trim pieces for it to look nice.