Popping sounds from rear spoiler or area

[DaveHC]

Ok i had the rear slide window leak, dealer resealed and so far no leaks but now have annoying popping sounds coming from what I think is the roof spoiler. This happens everyday when sitting in driveway in sun and  when you drive. It will pop a few times then stop. I hate to deal with dealer. Anyone else have anything like this or a picture of the inside roof with headliner down so I can see the mounting bolts? I heard headliner has to be lowered and wonder if any one has just dropped it at the back enough to get to bolts on spoiler. I think if I could loosen them and reposition it some and tighten good the noise will go away . Thanks for any help 

[RAYS B4U]

See if this helps you:

 

Water Found in Rear Interior of Cab, Water Leak at Rear Sliding Window