911SC Voltage Regulator questions

[helgeseg]

I am changing the V-Reg on my SC. The old reg had one wire that attached to the alternator, the new reg has two, one blue, one yellow.

The blue wire continuity tests to one of the brushes just like the one wire one the old reg does. So I'm pretty sure the blue wire attached to the blade connector on the alternator just like the one wire on the old regulator did.

So where does the yellow wire go? Looks to me like it might go to ground but I'd like to get some feedback to make sure.

Thanks,
Erik