You are correct that this is water getting somewhere. More then likely it is a wiring harness in the door.
The way to find this, is to use a hose and strategically start watering down portions of the car. Don't just spray wildly like you would if you are washing the vehicle. Start soaking portions of the vehicle allowing the water to only run in areas that you want so that you can find the area that is causing the issue. Once you find the area, you can start disassembling it to find the problem area.
Does this make sense?
Thursday, July 9th, 2020 AT 12:27 PM