If you are getting water in the headliner this may be a simple temporary way to minimize the leak.
I have no headliner so I have noticed that when I park facing uphill in the rain the drip pans fill up and then overflow in the back when I drive off.
If I park facing downhill the drip pans drain correctly and no water ingress.
The angle of my drive way is very low so it does not take very much to let water in.
Dan
I have no headliner so I have noticed that when I park facing uphill in the rain the drip pans fill up and then overflow in the back when I drive off.
If I park facing downhill the drip pans drain correctly and no water ingress.
The angle of my drive way is very low so it does not take very much to let water in.
Dan