Hello. We have rainy days in my country and I noticed that I have some water on wiring from rear right lamp and the lamp itself My first thought was that the tailight seal is the problem. So I replaced it with butyl tape and the water was still leaking. Today I notcied that the water shows above the lamp. So lamp seal is 100% good. It isn't big leak. After two days there's not much water, but any water is bad when it is on wiring.
Here you can see some droplets above the lamp
How to fix it and search the cause ? After visit on car wash I don't see any leak. Removing upholstery also don't help because this water is between two plates. Maybe someone faces similar issue before ?
I thought is could be antenna gasket but headliner is dry from what I see. I also thought about rubber wiring cover but it looks good. Can the water let go to the car thorugh hinges ?