Hello vettedude 76 !
Welcome to the C3VR Forum.
Now I just install rear speakers on my 80 vette and it is the same.
First: you need a special rack that goes in the hole in the back
second: you need speakers grill that you screw your speakers on and after you screw the grill on the special rack that is install on the back.
You must be carefull that your speakers are not to thick or the back magnet is not to big because it will not fit and you will have to do some modification like a have done.
you could get the rack and gril at mid corvette or corvette central ect...
it is about $40 for the rack's and $40 for the grill's.
Normand
