Every time I start the car the unit makes a loud thump or bang noise
from the back speakers...might even be the subwoofer. Nothing from
the front leads me to believe it's the sub.... I have the latest firmware and it's been there from day one. I have a 2005 Lincoln Aviator. Any idea
why the unit does this? Can't be good for the speaker(s). Never did this with the stock system.
Thanks!