[Hans&Feet]

The second part of the 1800C indicator fix for leds.
Two wire cuts on the TS indicator.
Ground the TS Indicator to Orange wire.
Now put the diode (arrow pointing up) anode to the TS wires,
Orange wire TS and Light blue TS then both diode Cathode stripe to the TS Indicator bulb.

RECAP: two wires cut from the indicator lamp, Orange wire to Ground.
The indicator lamp wire LB goes to the diode cathode/stripe ends.
The other two wires that were cut go the Anode/Arrow end of the diodes.

 

[Hans&Feet]

Put the amber lights up front, red lights in the rear.
As mentioned before add two diodes with the Cathode band to each of the led units.