Help me with this speed sensor issue

So, I’ve got a right front speed sensor not reading. A little more background; 2012 Prius C had a flat on the left (driver) front. Guy apparently kept driving, shredding the tire, which ended up tearing out the fender line and ripping some wires up. The schematic shows the speed sensor getting a red and green wire. The red/green wire I found goes into a sheath that is black with a red stripe and also has a bare wire. Anybody know if this is the speed sensor wire? If it is, what do I do with this bare wire?