Not a problem. I shows a few "naked" pieces of metal to put the multimeter on. So I tried all wires.
1 = brown (thin)
2 = red/green (thick)
3 = green/blue (thick)
4 = black (thick)
(image is a bit large)
https://scontent-amt2-1.xx.fbcdn.net...81&oe=5F0123FA
With the lead recently connected (amps at 0.38)
1 + 4 = 0.4 to 0.6 (keeps changing)
1 + 3 = 0.2 to 0.3 (keeps changing)
1 + 2 = 0.05 to 0.1 (keeps changing)
2 + 4 = 0
2 + 3 = 0
3 + 4 = 0
Waiting for several minutes (amps at 0.07)
1 + 4 = 0.1 to 0.2 (keeps changing)
1 + 3 = 0.2 to 0.3 (keeps changing)
1 + 2 = 0.08 to 0.1 (keeps changing)
2 + 4 = 0
2 + 3 = 0
3 + 4 = 0
For reference, the motor itself (the white plug going directly to the electric motor) has 2 wires, that are connected to wire 2 and 3.