I had a similar sort of leak, the dealer was convinced it was a roof marker light. I had to tell them that this was unlikely, as my truck does not have them !!! can you imagine!!! Turned out to be the sunroof was to small, they tried to adjust it, but they could only move the leak from one side to the other. A replacement sunroof was the cure.
then the back window leaked, but that's another story !!!!
good luck!
How do you know when it leaks... . headliner gets wet????? I would like too keep an eye out on this
What do you have now?
Brand new recon lens installed. Still leaks like before... .....