I have an old 1967 camper trailer that I am remodeling. I've run into some issues with the wiring of a new light fixture. The old light had two light bulbs and switches and the new one only has one set. Even with that second light bulb, there still seems to be a few extra wires. I have tried several combinations of wiring and cannot get the light fixture to work. Can anyone help me decipher this? I've attached a picture of the wires below with the new fixture attached. Thanks!