Idk about changing the tail lights. It matches the emblem, tint, safety lights in the bumper, turn signals front plate and wheels. And it isn't tint, its paint and clear, so they won't ever dull or lose gloss. So its not an easy removal either way.
The sound system is nice. I love the way it sounds. With 1800 watts going to the subs it also has the ability to flex some metal if I want it to. The RDX is my mothers. Hopefully this Friday when I detail it ill have time to blackout the grill lol.