I was wondering what size are the back door speakers in a 2000 trailblazer 4dr???

Also I was wondering what size the tweeters are in the dash and the components in the front doors for my 2000 trailblazer 4dr??

 

you will have 6.5's in all of your doors, and possibly a 1 inch tweeter in the dash

 

Just my 2 cents, make sure the mounting depth is correct. I'm debating on cutting up my door panel or returning my speakers.