I think its actually a Plymouth Satellite. That chrome trim down each side was the giveaway for me.
I think you're right. Check the ridge on top of each fender (chrome trim was present or not depending on model), the parking light size placement, and the design of the grille. Also, that Mopar body series was available in a convertible. It's a little hard to tell in the video, but I think the driver's side rear view mirror is also a match between the two images.