G35 Mass

Update: After overnight rain, I was able to track down the leak. I found water and water marks on the area of the lower D pillar, and when pulling at the liftgate trim some water dropped out. I removed the trim and found water above the lower metal of the roof. Upon further inspection I found water dripping out of the connector that connects the body to the liftgate. I'm presuming the gasket that seals the connector has failed. I'm currently at Chevy having it looked at to determine a course of action. Will be interesting to see what they'll do about the stained headliner.

Ok! I am slightly suspecting the two wire harnesses that pass through from the roofline to the hatch because they're in that corner of the cargo area. However I can't see any obvious reasons for it leaking there.

Good morning. I've seen all the posts about the leaking sharkfin, however I doubt that is the cause of this; this is occurring at the opposite corner of the headliner. I noticed last week a good size stain on the headliner at the back/passenger corner. 2019 Tahoe w/ 15k miles, no mods, no crashes. I haven't been able to find anything in the search here or the google machine. Has anyone seen this??