Hi guys,
Seem to have an odd issue, the boot was very damp the other day, under the lining was very wet, I've let it dry by taking the lining out, but now I have a left tail light that has condensation inside, and the car inside STINKS as we've been having some nice weather

What shall I do? do you reckon its because the previous owner had the rear bumper sprayed due to a car park scrape?
I was thinking boot seal? or maybe tail light seal? letting water through the edge, I hope it's not the gutters anywhere else on the car, because the boot doesn't smell anymore, but the rest of the car does? I think the only way to find out is wash the car for ages, and see if any of the carpets are getting wet... I have warranty on the car but doesn't cover seals.