I have a 2004, and I did the mod to make the reflectors into tail/brake lights. They are only on when the headlights are on.
I bought new reflectors that accept bulbs, along with bulbs and wiring harnesses, on Amazon. The OEM reflectors don’t accept bulbs without modifications, and I wanted a plug-and-play solution. I also had to destroy the OEM reflectors to get them out. I forget if the bolts were frozen or stripped.
I think everything cost me about $75. It was much easier to do the mod with the rear bumper cover off the vehicle.