Cable harness for speed sensor

[Blowout]

The speedometer stopped working and I've narrowed the problem to be a break in one wire of the cable harness somewhere between the ABS module and where the speed sensor's blue connector plugs in at the black box in wheel well.

I tested by unplugging the blue connector for the rear left speed sensor in the wheel well and used a pin shaped probe to attach a wire long enough to reach the engine bay. Then used a multimeter to check connectivity at location 13 and 29 in the connector at the ABS module. 13 showed connectivity, but 29 didn't so there is a break in the wire or at a connector somewhere on that cable.

It would probably be easiest to buy another cable to reach the left rear speed sensor, but I can't find it anywhere. I'm hoping someone might have a PN or a suggestion of where to look for it. I'm not having any luck finding it...