Quote: They mounted them everywhere . Some under dash, some in the switch panel , some were near the vent controls just below dash pad . The '68 Charger actually had theirs mounted in the radio bezel itsself .
Greg
Factory mounting locations were specific to model or dash, dealer would've/could've mounted them anywhere.
Inboard screw holes mounted the speaker, the outboard holes are for the speaker grill "cover" that came in the "rear speaker PACKAGE".
Here's a speaker & grill pic, also newer than the muscle car years.
