I think you're confusing yourself. You are looking at two different switches, the switch that this thread is about is for a column mounted style where as yours is the dash mounted type. The column mounted style has the internal switches that need to be reversed with the relays, the dash mount does not need them, it is the opposite. Don't ask me why, but the das mount is the only aftermarket switch that I am aware of that has normally open switches, just like a GM switch. Based on the schematic you posted on my CC thread, my thought is you have the brake light switch incorrectly hooked up. assuming you have the DD switch wires hooked to the TAC correctly, on/off, set/coast and resume/accel, I would think this would work. I drew the diagram based off your drawing. Ignore the two pieces of paper covering where I forgot you had LED taillights....
