I installed aftermarket speakers in my 2016 wrx this past summer. I was getting some nasty buzzing on bass in the passenger rear door speaker on occasion. I assumed something was loose. Took it all apart still buzzed. Took it inside hooked it up to an old stereo and the buzz was ther but slowly went away. Then I noticed the speaker was damp. I believe the internals had some frost or ice on them.
I live in CT it's going to be below freezing for a while. How do I remedy this? Should I just live with it wait for the car to warm up? I'm not at all blasting the bass. It shows up at mid range volume
Google searched for speakers and ice were ruined by the use of ICE as an acronym for in car entertainment.