Re: brake,reverse,turn lightbar how too.
Huh. Not sure why it would require a separate power source when the power for your turn, stop, and reverse lights would be obtained by tapping into your existing circuit for those wires via the 4 way trailer plug. Have you tried just hooking it up using the 4 way trailer plug and tapping the white wire into your reverse lights to see how it functions without supplying power to the red wire?
96 F-250 ECLB w/7.3, E4OD, Dana 60, 6637, KC TP38r, Hydra w/PHP tunes, Swamps HV/HF IDM, Efuel, HB Sr. HPOP, 3"dp to 4"exhaust with aero turbine muffler, Riff Raff bellowed up pipes, gauges - aeroforce interceptor, isspro ev2 pyro, boost & trans temp, IH water pump, Horton Efan clutch, hydroboost, 230amp alternator.