Schematic on the drawing board- - - -it uses two 6V Bosch style relays and two diodes. The sticking point is creating a circuit that keeps one brake light on constantly, and flashes the other one, yet will still work when braking is not involved. That's where the diodes come into play, preventing backfeeding the opposite brake light and flashing them both. The relay actually turns one brake light OFF intermittently, in sequence with the flasher signal. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!