1984 wiring of high brake light
 

The 1984 C4 finally arrived. To get licensed in New Zealand, it needs to have another
brake light mounted high. I have a Hella LED one and led the two wires to the brake light switch at the brake pedal. I
bought a repro workshop manual, but the wiring diagrams at the end are missing. I need to know which to connect the
new light wiring to at the switch, one positive and one ground.
There are two sets of wires exiting the switch. The first has three thicker wires, one blue, one white, one orange. The
second has two thinner wires, one blue, one brown. Where do the LED wires get connected. All help gratefully
appreciated.