usual problem with rear lights

[walshyclio]

ive got the common problem with my near side rear cluster. when indicating or pressing the brakes i get the blackpool illuminations! ive checked the bulbs and connections and found that one of the wires(the white) has snapped out of its place in the plastic block.

is this a part i can buy from renault and resolder the whole connector or is it a scrap yard hunt?

thanks alot for any help
trev