First Gen Barracuda Interior Trunk Trim?

Recently I found a thread concerning a factory piece of trim that covered the area of the very rear of the trunk where the tail light wiring harness runs (and trunk latch). But now I lost it. Anyone can direct me to the thread (or better yet explain or present photos) with information regarding that not so well-known part? I was wondering if the "clips" located back there (see photo #2 with finger pointing to one of 'em) are made to secure the wiring or made to secure the trim piece ? And are there two pieces of trim (right and left) or just one long piece? Thank you.

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