A standardised wire harness connector used to connect hard wiring on a self-propelled machine to hard wiring on an attached implement for the purpose of controlling lights or other electrically powered equipment on the attached machine. The connector must meet the requirements of CSA-M663-92, "Seven-Pin Electrical Connector and Cable for Agricultural Towing/Towed Equipment" or SAE Standard J560, "Seven-Conductor Electrical Connector for Truck-Trailer Jumper Cable", and must be mounted on the towing vehicle according to ASAE Standard S279.9, Lighting and Marking of Agricultural Field Equipment on Highways.