SenseiSays and I both have successfully modded our RSM250s with two Radions. Unlike some other mods I have seen, neither SenseiSays or I cut holes in the top of the hood to access the controls on the back of the Radions. I personally did not want to ruin the look of the hood. I left a short USB cable hooked up to one light and then hooked it into an extension cable to do the programming. When not in use, I took the cap from a thumb drive and put it on the end of the USB that hooks into the extension cord. I tucked the short cable up behind the light until I got ready to use it the next time. After I was done acclimating the tank, and was finished with the programming, I unplugged it and then put the rubber plug back into where the USB cable plugs into the light. I love mine and think it was much easier than some of the retrofits out there.