Installed mine with success in 25ish minutes
(Had to go chase down a set of pliers, or it most likely would have been less time)
Bally Radical! System 11
The 12v was the gray / yellow line
The ground was black / yellow line
I started with too much bass, and toned it down to where the bass complimented the original highs and mids. I really like the improvement and the fuller sound. The bass can hit hard if you want, but it was too much for the cabinet and muddled the sound too much when turning it up too much. Settling on a nice mix makes the sound more rich and not so much on the high end.
The routed design on the sub riser makes the install very quick without having to drill any extra holes.
I’ll try to get a pic soon, although it will look almost exactly like the other installs.