9-speaker system.......tweeter size and location?

Hi, I have a 2001 Suburban and I want to change all of the OEM speakers in it. I have a 9-speaker system. I know there are 4 6.5"s in the doors and an 8" sub in the back. Are the other 4 tweeters? Where are they located and what size are they? I would appreciate the help. Thanks.

There is a tweeter in each front door and a tweeter on each of the rear pillars by the cargo door(s). The front door tweeter is behind the same grille as the 6.5"...believe you'll have to take the door panel off to get to it. Shine a flashlight in it and you'll see it above the 6.5".

You'll have to take off the trim on the back pillars to get to those tweeters...it just unsnaps on our Tahoe so the Suburban is probably the same.

Sorry, don't know what size they are.