orginal rear speakers

I have a 99 alero and need to know what size speakers were orginally installed in the back windows. My son pulled speakers and installed others. I want to go back to orginal size. Where can I get the brackets that hold the speakers? Is there an after market kit that would hold store bought speakers?

please help

thanks

If you want the original bracket, a junkyard probably has one.
Most speakers you buy will come with a mounting bracket that should fit.
I don't know the original size, sorry.

I have a 99 alero and need to know what size speakers were orginally installed in the back windows. My son pulled speakers and installed others. I want to go back to orginal size. Where can I get the brackets that hold the speakers? Is there an after market kit that would hold store bought speakers?

please help

thanks

they are 6X9 two way speakers.