Sure, but to add the illumination gets a little trickier. There are kits on the market, and some of them include templates to cut them.
If you notice, the speaker panel is pretty awful from getting wet - so I needed to replace it.
I had a buddy make me one, with a slight twist:
Can anyone tell me what the twist is? The 2nd one from the right on the bottom row is the one for my IJ :)