Over the past week I installed the speakers, amps, bass shakers, dashboards, VR buttons (wired to I-Pacs, no illumination solution yet), and built the LED light bracket for the topper. The bass shakers aren't cranked way up - but they add just enough to really improve the overall experience. These two Arua transducers are actually left over from my original driving cabinet. Knew I'd use them some day.
The LEDs are RGB with a remote (that works through the topper). I used aluminum 1/16" x 1" strips and built the frame. The LEDs themselves are just some cheap $15 kit off ebay. Being able to DIM them down so they're not blinding is really nice. They also remember the last state they were in when the power is lost, so they go on/off with the left cabinet/PC.