As you can see in the attached pic, I do not have the sub like you have. Yet, I paid for the $2000 HK upgrade and it shows on my sticker. And it even has the HK label on the inside of the door near the sideview mirror. Something is definitely wrong.
As it stands now, I have to crank the volume to the max to hear anything, especially with the windows open. So if this is what the HK sounds like, I want my $2000 back. For that amount of money, I could have upgraded the components myself and had a much better sound.