I have had 2 68's and both of them have had these retainers in the trough that runs along the RH door. I've been trying to locate some new ones, but I haven't found any sources for them. Any help would be appreciated.
That is interesting, Might be a rear speaker, Fader harness clip only installed by Fisher Body and not shown in the AIM, Probably a non-reproduced item on the aftermarket. Neat info.
I know for sure they're used on rear antenna cars. My car has those....Joe