I was given two things by a VFD. One is a bumper mount siren (Federal Enterprises EG) and a beacon type light. I was told both work. The siren out of the beacon light does work but I was unable to get the motor to spin( probably wiring issues). The bumper mount siren is a 6v DC and the car 68 Pontiac is a 12v. I need help getting it wired properly. Just for Info, the equipment was a 68 Suburban.