'70 Charger. Not Challenger.

If your '69 RR has a basketweave type material in the center of the door panels, then it's the base (Belvedere) interior. Should also have non-plated armrest bases in that case, and maybe no rear armrests.
If the door panels are 2-tone and have horizontal pleats, then you have the Decor/Deluxe/Satellite interior. Might have also had buckets, in which case there will be 8 holes in the floor pan for ft seat brackets instead of 4 for a bench. Obviously no bench with a console.
If they differ from the above examples, post a pic; could be someone replaced much or all of the panels & seats.