I purchased the Car Winer (Amazon's brand) for my Model Y and had no problems with the windows. I already had the after market lights on my front doors and just recently got them for the back doors. However, I have a different issue. When I open both the front and rear doors on the left side of the car, both lights will light up. However, when I open both doors on the right had side of the car, the light for the right rear door will not light. It works fine by itself, but if you open the front door, it goes out. Just to test I put the original light back in the right rear door and it worked. I cannot figure why the rear light would go out, if the front door is opened. It puzzling. I would think they work or not work, but not have some conditional problem. The only thing I can surmise is that the new lights are so much brighter and there is some energy-saving limitation that won't permit all fours doors to be open at the same time. It's not a super problem, but I would like to know if anyone had a similar experience. Of course, there is no website or phone number to call the manufacturer. ???