Yeah, I looked up pictures of '06 trucks with pickup beds and it looks like they still use the combined STT lights setup. Meaning the '06 column and its respective turn signal switch will be set up for those, which makes his job as easy as connecting one end of the wires to the switch and the other to the lamps in the back. Obviously gonna need the '06 wiring diagram for that tho.
That said I personally do like separate rear lamps, but not how most tractor-trailers have them on our side of the big puddle - euro style is better as their blinky orange light can mean only one thing, while our blinky red ones can be open to interpretation by the moron drafting you. And since most morons these days are great at multitasking with PDAs and smart phones and God knows what else... Yeah, red for running and brakes, orange (preferably with an arrow) for turns, and a big bumper for when none of those are paid due attention to