Just to clarify, there are two shift cables that come off of the shifter. One for the transmission, and one that goes to the key cylinder so the Jeep can’t be shifted without the key and foot on brake/key can’t be removed without being in park. IIRC correctly, a first gen Jeep Liberty interlock cable is the same as the TJ.
Blaine mentioned it on your other thread, but there’s a little ball and detent that gets swapped out under the cylinder as well for said cable. That can also come from a Liberty. That’s where I got mine. I think I sent some extra pieces to Blaine and Mike and they worked.