Having RGB pixels in your display is a HUGE jump for most of us. With that jump comes a lot of work and learning how to control them. One of the things you will ultimately need to do is a repair. Unfortunately, when pixels go out they can take out the rest of the string. Sometimes it's just a pink pixel and your string doesn't go out, your in luck if it goes like that. I had both issues last year. I had one pixel go out about 20 in on a 298 pixel string. I had to get the ladder up, cut, strip and insert another pixel. It was time consuming and a pain. I didn't mess with the pink pixels...even though it bugged me. I wanted an easy way to do a repair and have been researching ways to do a quick SAFE repair when needed. What I have found is a Belden butt splice part number 709sc. It even has gel in the splice to make it waterproof. Now all I need to do is prepare a few pixels ahead of time by placing the spice onto each side. Then when a pixel goes out I simply cut the old pixel out, slide the wire in and clamp it down. Unfortunately, they dont have a 4 pair solution that I have found....but this is way better than what I had to do last year and will work with both 4 and 3 wire configurations. Hopefully this can help someone with the inevitable.