Which connector? there is one to the airbag .. then there is the one to the steering wheel.. and then there is one beyond from the slip ring to the steering column.
Have photos of a Cupra without steering controls.. and for the the yellow one into the steering wheel/slip ring from the airbag/horn... with the tab at the bottom looking from the back of the connector where the wires come out .. it goes from left to right... red (might be brown) air bag, blue air bag, black earth/horn, brown horn. But looking at the slip ring mine has 6 contacts.. so this may not be enough for you.. think the right most last 2 contacts are empty on mine.