As I’ve had nothing but trouble with the wiring of the wings I’m re-wring both of them so I know where I am.
(Note that I’ve added a blade connector onto the back of the indicator, normally that wire runs directly from the indicator’s bulb live connector to the main wiring loom’s bullet connector. Adding the blade connector makes it easier to remove/ replace the indicator as you don’t have to cut that wire.)
The indicator live (red) and earth (black) both run through a 12mm grommet at the front. The live runs through a red sleeve.
The indicator earth attaches to the indicator via the upper retaining bolt. It’s important it’s the top bolt as the head is connected to the earth of the bulb inside the assembly.
The repeater live runs through a grey sleeve and connects to the repeater via a blade connector.
With the wires cut to length the connectors go on and I’ve added heat shrink over them to tidy them up, keep the clart out and take a bit of stress off the wire where it enters the crimped connectors.