Hi everyone!

2006 base model GP, with many options though.
I'm trying to find out if I have the 6 speaker or 9 speaker set up. I count 2 in both front doors, and two larger speakers in the rear. I read that each of the rear speakers count as 2 speakers. If my math is correct that's 8 speakers. Where is this so called 9th speaker? I've read about one in the dash? Where abouts would it be? I don't seem to have any sound coming from anywhere in the dash and don't see the speaker. Just want to make sure I know which setup I have so I get the right speaker for one of my blown speakers in my front door.
Thanks a lot!