Charging system troubleshooting

Both FLD wires at the alternator are green; the VR has a green and blue at the connector so somewhere there's a splice. All wire routes are heavily taped so I can't tell where. Only one wire had voltage some I assume that should be the blue wire.
I have a pretty decent multimeter; it's HF but it's the $40 one not their cheapee giveaway unit.
Setting it to 2ohms, there's .06 ohm across the FLD terminals. Between the two FLD wire connectors there's .56 Ohm.

I have a test light. So if the lamp lights up with the engine running then does the culprit point to the VR?