Loose headliner

[LGREGF@aol.com]

The cloth headliner in my 87 5000 has separated from the roof, probably as a 
result of the car being parked in extreme heat for a few days.  I would like 
to fix this without taking things apart.  I can spray adhesive through the 
light opening but not sure what to use that will act like contact cement and 
not discolor the fabric.  Would like to hear from anyone who has had this 
problem and solved it with minimal intervention.  Thanks.