Rear Glass / Condensation

[Lee S]

Washed my car this weekend and there seems to be damp/moisture in the boot now too. The boot carpet seems damp. I'm wondering if my moisture is something like the boot seal leaking and the water going into the boot carpet and then evaporating through the parcel shelf into the cabin? Or do we still think it's more likely that it's coming through the window seal and down into the boot? Any way to check if the boot seal is leaking?