Il Mio Problema
Cable was snapped in half, which occurred during the previous repair which was the front screen replacement. The picture is the broken original cable.
La Mia Riparazione
Unbelievably, it works. There are 4 things here, and they all work. Camera, proximity sensor, light sensor, and the speaker (which isn't included in the kit but fits onto the cable).
Il Mio Consiglio
Really focus on how the cable comes out, because the replacement cable does not have the bends in it that will be required to complete the install. It took me a while to reverse-engineer the origami bends to make it fit.