I second that request... My car had the original console 8-track w/rear speakers in the convertible well, but I can't seem to figure how they attach. Tech manual diagram shows what looks like a triangular box (cardboard, I assume) around each speaker, using the special mounting screws (sold as repops)to attach to the rear bulkhead; however, the repop catalogs sell simple carboard "trays" that only look like the top part of the original "box". Photos would be helpful, if anyone has them.
(Sorry to jump onto your topic, 68tpls400; I've been putting my stereo system in over the past few weeks and had been meaning to send the same cry for help...).