I have a 2004 996 Cab. The roof liner has a small fabric flap that covers over some elastic bands, one on each side around the position of the rear seats. The flap is held in place with adhesive velcro strips. On one side the adhesive has failed and the flap has come loose. Pusihing this back in place results in the flap staying in place for a couple of days, then when it's hot out the flap come undone again. Does anybody have a suggestion on how to permanenty fix this? The dealer just pushed this back in place....

Simon