S1 To Neo Coil Wiring

[Wyn]

Am using a Neo GTT head on a Spool RB34 build but with S1 R33 gtst loom. Its all but done wiring wise apart from this coil loom

To run the matching neo coils ive picked up a S2 coil loom and changed all but 3 of the wires over to match the S1 loom

All of the other wires colour matched fine apart from these odd 3

Hopefully you can see I'm left with these 3 odd wires to join below ...

1x black with red? tracer in the 2 pin plug from the S1 loom

1 x black/yellow in the S1 loom

1 x black with grey spots in the S2 coil loom

Q's are ...

Is the black with red tracer just an earth as that is in the same 2 pin plug the white power wire was in?

Does the black/yellow connect to the black grey spots or are they also earth wires

Hope this makes sense to you guys ...

cheers