That looks amazing. Do you know where the led's were placed in relation to the front opening of the SH96HOs?
That is the tough part.
I made a "frame" that went over the front of the cabinet and it stuck out in front of the edges of the horn enough to mount the RGB strips on the backside of the frame.
The problem is that the frame had to be large enough to get the leds to get past the flare break in the cabinet.
Yes, there was probably some sonic interference, but in this case the "cool look factor" was more important.
It was fun to do, but not practical to manufacture.
Of course you could paint them white and simply video map onto them, but that would cost more. but would also give a lot more variety and possibilities.