[BirdTRD]

Here's another easy option. Use a SPDT (single pole, dual throw) switch for your "Fog" function. The common terminal will go to the blue lead on the Valenti 4th light, one side of the switch gets tied to 12V from the fuse box and the other side taps into the Red lead on the OEM tail light harness. This way you will have the --v-- on as a fog light or when headlights are on and the Triangle Brake light will flash in either of those 2 conditions. The only time the Brake light will not flash is when the switch is in the "headlight" position and the headlights are off. Make sense?


Of course, the rest of the connections will still need to be made...long red lead tapped into the brake wire (green I think) on the OEM tail light harness and the backup connector plugged in.