First off, the video came out great!The pin-out for the Apex cable is in the Apex manual. Unfortunately, the wire colors in these Apple cables are not consistent so it is best to just pin them out with a multi-meter or test light.

You also do not need an Apex of course to make a simple ATO using these same switches, in fact that is just what I did after MAX now that this tank is in my son's room. Here is a link to an article on how to do this http://www.utmas.com/general/to-top-it-all-off/

Finally, small correction...it's UTMAS (not UMAS) Thanks again and Reef On!