Haha, that's hilarious. What's that sound? It's just my nuts rolling back an forth.
My fix may have been easy but finding the source was a bear. I even removed both passenger inside panels and drove around that way. I thought about using some Great Stuff foam spray or some of that Leak Seal spray. "That leaky roof will cost you ththousandths"
And this was no ordinary squeak, it was the type that burrows into your head through your ear. Think Wrath of Khan worm in helmet.