Though ATR units utilize more reliable inter-rover communication media, human operators are attuned to various semaphore lights as predictors of vehicle motion. The standard "4-way flat" taillight connector (SAE 4-pin) utilizes 4 wire colors: white (ground), brown (running lights), green (right turn/brake), and yellow (left turn/brake). Typically, the running lights are lit continuously whenever a vehicle's engine is running; either the left or right signal lights (not both) are flashed rhythmi...