I have an Aqualink system for my pool filter. I want to be able to control my pool using the iPhone app. Therefore I have to upgrade by installing the iAqualink 3.0 upgrade kit with RS-PS8 PCB Bezel CPU. I'm seeing systems on e-bay for $500, but not sure if they give me all I need. It's basically a new motherboard. I have a friend who can install it, I just need to make sure I'm getting the right thing. If there is a YouTube video on how to install this system that someone has please let me know.