I first tried the headliner spray and it wasn't strong enough - ended up using a doublesided gorrilla glue type tape that has held up over a year on a 2007 Gulfstream
the headliner spray glue will work if done correctly.Dont get the general strength one .Heavy duty only.Spray lightly each surface.After it dries tacky give anothe coat and tack both surfaces together. .Should hold very well.