How to make an admin in django, so that when adding - to search, and fill in the result of the selection?

Question

Django

There is a TechDoc base (spare parts database). It is necessary, when adding a car brand, to search for a technical document by the entered name, and substitute a similar one that was clicked on. And then fill in the form with this data.
Something similar as when selecting a city on many sites. Finds the city, clicks on it .... Only here in the admin panel you need it.