Just installed mine in my ACDC Pro LED.
This WILL NOT JUST INSTALL FROM THE FACTORY. If you have an ACDC PRO LED, there are some very minor modifications that MUST be done to install this properly.
Here's Exhibits A and B:
So with the LED Pro version, the speaker housing is all metal, and it has an exaggerated lip that houses the bottom of the translite. When put in place, speaker panel sits more at an angle than flat back like we are so used to. Well, that lip keeps the ColorDMD from being able to lay perfectly flat against the speaker housing. As well, there are 6 mounting screws in the speaker panel, and the bottom one actually interferes directly with the screen. Left over time, I can see this actually scratching the ColorDMD screen - not good.
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** - edited out as response below this post was very informative and helped me devise a solution - ** - please see this post as to what I did to make this install work 100% : https://pinside.com/pinball/forum/topic/i-finally-know-what-it-is-like-d/page/2#post-2326381
