water in the battery tray mk2

[jools182]

I've got a mk2

Battery is on it's way out so I pulled it out tonight to try and charge it a bit

The battery tray has about 1cm of standing water in it

I know the weather has been awful lately, but I have in idea where it's getting in

Any ideas?

[jools182]

Aerial is on the other side

Carpet seemed dry too

[jools182]

I had a feel around under the hardtop fixing bolts and one seemed wet. That could be condensation, but I will put some sealant around there and see if it helps