generally Roger, the tail and brake lights are wired through the brake light switch [under the floor near the brake pedal] to the light switch in the dash to get the power - if you have turn signals they'll be involved w/ the brake lights
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics