There are many clips used on cars that are unique to that manufacture, typically these are on wider trim. All these links people are posting will only have the typical butterfly clips in different sizes. I am assuming (since I haven't seen this clip) that it is one of clips Chrysler designed specifically for that specific trim.
Again with seeing the clip or the trim I can't really say what I might try, that being said I'd look into taking a couple butterfly clips and welding them together or to another piece of metal. This may not snap onto the studs and may require drilling. Then again at that point you might just as well use the modern trim tape.
So unless you know this clip and have a good idea where to get it don't bother posting, I know we all want to help but at this rate we'll be 20 pages in and still no clip.
Matt's best chance will probably be to salvage some originals.
Alan