How does the interior rear window trim install on a the 68-70 Chargers?
Does the channel on the trim fit into the thin metal frame above where the teeth are ( where the headliner attaches to) or into the teeth where the headliner is installed?

I edited the post I meant to say headliner not vinyl top.
That's what I get for making a post when having a migraine.

Ok, thanks Mike
The original lower piece was already there. I probably would have been even more confused, had I seen it installed on the metal channel, and figured they all must go that way.

I'll try again on the weekend, hopefully with a clearer head ...