I'm using a 6-pin plug on the toad, but I'm only using 5 of the 6 pins - left turn signal, right turn signal, brake lights, tail lights, and ground. The brake light and tail light wires are split (jumped) to the left side after I got the wire to the back toad on the right side (or vice versa, I can't remember which side I ran the wires to first). Then I used a separate diode for each bulb filament (3 per side - turn signal, brake and tail). IMO, Roadmaster provides some pretty good info on toad wiring. I wired my toad according to their wiring diagram
for wiring a motorhome with separate brake lights and turn signals to a toad with separate brake lights and turn signals.
I didn't pay any attention to wire colors. I plugged the coiled electrical cable into the back of the motorhome and used a test light to verify which pin was which on the 6-pin (toad) end of the cable. I then wired up the 6-pin connector on the front of the toad accordingly.