I recently bought a 2011 impreza outback sport. Little silver 5 door. I love the car. However, my thing about driving is that it always involves me cranking my music.
Even at lower sound levels [14-20] i get some rattle in the lower side of the passenger door. It only happens for certain bass notes, in the range of a G and a Bflat, mostly. Which tells me it's finding the resonant frequency of the door.
It happens on the drivers side too, but its not nearly as severe.
I took it into the dealership because I didn't pay for a car to have the damn thing rattle. They said they didn't hear a rattle at all. Which, is actually understandable, because it doesn't happen all the time. Only for certain notes. I tried to play a song for some tech guy that made it rattle a bit, and of course, the time I had someone else in the car who mattered, it didn't rattle... So i drove off, and as soon as i was out of the parking lot, bam, rattle.
Just wondered if anyone had a similar issue. I'm no stranger to disassembling doors and working with the speakers, but I'm worried about messing up the warranty. I want to put some new speakers in it anyways, and thought that maybe I could get it professionally done, and have them line the door with dynamat or something similar, which would solve the problem, i'm sure.
Or is there an idea of what to put/change inside the door that doesn't take a dramatic, warranty-destroying breakdown?
Thanks for any help/guidance, guys.