I've been looking all over the web to see if anyone has modified or replaced speakers on the 2013 Azera. I've done this on all of my car but this car has more electronic toys than previous cars. Basically I want to replace the factory sub with a slightly bigger one but I do not want to replace the head unit. I want to keep the factory look. I've been told that the azera has microphones in the car that works to keep the car quiet (noise cancellation) which makes it difficult to install subs or make any type of speaker changes to the car. Has anyone done this to a 2012 or 2013 Azera? I would love to get some ideas.