im a brand new owner of a 2004 mazda3 s (sedan) and i was wondering if and how you can get the condensation out of the tail lights. i didn't notice at the dealership since it was raining and everything was a a bit damp.
Id say wait a little till it drys out on its own. I get those inside my tailights when its a cold night/morning then it seems to go away later on in the day.
from what i have gathered this happens because the housing is not completely sealed and condensation builds up and causes the lights to do that.
pull the bulbs out during the day take a hair drier to it and try to dry up all the moisture then reinstall the bulbs, should fix the problem, at least thats what i did on my headlights a few months ago and it hasn't happened since then.