These connectors are made by a number of manufactures, but all will fit into each brand provided the style is the same.
There are 5 main styles:
7 pin flat.
12 pin flat (which also accepts the 7 pin flat)
6 pin small round (becoming outdated).
7 pin small round
7 pin large round (mainly vic and SA use).
If it mounts on the car it is a CAR socket , if it is on the front of a trailer or Caravan it is a Trailer Plug (regardless of male or female).
Most photos show BRITAX brand, however ARK are very similar.
PIN 1 - Left Indicator - Yellow 1 year warranty.
PIN 2 - Reverse - Black
PIN 3 - Earth - White
PIN 4 - Right Indicator - Green
PIN 5 - Electric Brakes - Blue
PIN 6 - Stop Light - Red
PIN 7 - Tail/No Plate - Brown
SpecificationsModel: 004897 CAMEC, 20280171Shipping Weight: 60 grams.Shipping Dimensions: 4 cm x 6 cm x 10 cm.