My only issue with installing these, was trying to get that dang dust cover off. It was so tight. First time being removed after over 5 years. So, it was a pain. But after getting it off, and installing these bulbs, (which took almost no time), putting the cords and box back into place wasn't an issue.
I did find, that driving with these installed for a week, I noticed that my lights were not shining on the road correctly. They looked great in the driveway, but, on the road, they were a bit off. When I removed them, I noticed I had the bulb in the wrong position, as the LED was setting at around 11/5 position. I'm kinda shocked no one was flashing me. After turning the bulb a bit, (the entire thing, not just the bulb), it when into the correct 9/3 position. (meaning the LEDs face the 9 o'clock and 3 o'clock position) The light was more inline with the road.
(my first attempt, my left light was pointing more toward the right side (as seen from the drivers seat), The right light was fine)