Quoted from ray-dude:
I recently upgraded the speakers and added speaker lights to my TNG. Fully documented at above link
This is an excellent post and very well documented. Including adding a color DMD at the same time. Thank you for the shout out as well!
I would strongly suggesting adding PINSOUND PLUS as well for the dozens of benefits it offers.
Their speaker system is very good, and it all comes as a package with great installation instructions too