I am getting new speakers for my blazer. It is a 4 door LT if that helps. I know that the front and back doors are 6.5 inch and the ones on the dash are 4X6 but someone told me that there are rear speakers? I didn't realize that there were rear speakers if someone could tell me the size that would be great. I also need to know the mounting depth.

 

Nope, no other rear speakers than the ones in the back doors. They're probably thinking the 4 door has 6x9 rears like the 2 door does. Which it doesn't.