Modern seats in a 67 barracuda

Just found this thread but of course it was after I picked up a set of seats from a Sebring convertible. Had no idea that there was a difference between the years and didn't take note of the year the car was that I took them from. So if I understand this correctly if I can move the seat belts then they are 2001 and up and I don't need electronics to make them work for my Barracuda. Is there any other way to tell what year and if they will work properly? Sure glad I saw this thread. Thanks to everyone for their input on this as its a real safety issue and I would have never realized there was an issue till after I had installed them.