Here is the relay located behind the compass for the Delorean 1:8 from eaglemoss.
You will have to paint the model in white and glue it in the right spot.
To be accurate, the holes from the model are for specifics wires.
You can find this wires here :
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.fr%2Fulk%2Fitm%2F152980605020