Rear seatbelts - buckles on inside or outside?

Mounting rear seatbelts in my 68 charger. Do the buckles go on outside, and the pushbutton release goes in the inside? Or vice-versa?

I know it really doesn't matter operationally but it will peeve me if later I find I did it backwards.

you could go to EBay and check out the frame off restorations...

Never had one, but if the fronts are latches in the middle (seems most are), I'd match that.

My 68 Coronet had the latches in the middle, I would expect a Charger to be the same, but you never know... My rear seats also had plastic clips mounted on the front of the seat to attach the latches to when not in use.

Same with my Valiant.