THE UNIQUE FEATURE OF THIS 7 POLE SOCKET IS THAT TERMINALS ARE PROVIDED TO ACCOMMODATE A 6 POLE SOCKET HOOK- UP ANDIN THAT EVENT , THE WIRES FROM THE 6 POLE SOCKET MUST BE CONNECTED TO THE ANGULAR TERMINALS . THE TRAILER LAMP WIRES MUST BE CONNECTED TO THE EMBEDDED TERMINALS. IN EITHER OR BOTH CASES, THE CURRENT PASSES THROUGH THE BUILT IN CIRCUIT BREAKERS TO PROTECT THE LAMP CIRCUITS .