2005 SUZUKI VL800 Electrical Systemignitionswitch Problems

I HAVE 2 2005 SUZUKI C50 BOULEVARDS MOTORCYCLES. I ADDED A LIGHT BAR MADE BY SUZUKI. IT ATTACHES ELECTRICALLY TO A PLUG PROVIDED BY SUZUKI INSIDE THE HEADLIGHT CAN. WHEN USED, IT OVERLOADS THE IGNITION SWITCH, CAUSING HEAT, MELTING PLASTIC INSIDE. THIS IS NOT A PROBLEM ON THE 2004'S (VL800 VULSIA) WHICH RUN OFF A CARBURETOR. THE 2005'S ARE FUEL INJECTED, AND REQUIRE A FUEL PUMP. I BELIEVE THE IGNITION SWITCH IS THE SAME ON BOTH. THOSE THAT HAVE THE LIGHT BAR ON THE 2004'S AND EARLIER DO NOT REPORT THIS PROBLEM. THOSE WITH 2005 AND UP, DO REPORT THIS PROBLEM. REFERENCE VOLUSIARIDERS.COM, AND SEARCH ON IGNITION SWITCH. IT DOES NOT APPEAR THAT THE 2005'S ARE DESIGNED TO HANDLE THE ADDITIONAL LOAD OF THE FUEL PUMP AND THE LIGHT BAR. THE SWITCH CAN FAIL WHILE IN OPERATION, AND LOSS OF POWER CAN CAUSE AN ACCIDENT. I CAN RESEARCH THE FAILURE...