I used to love RockBand before I learned to play drums, but after a while of playing drums I tried to play RockBand again and I was so much worse than before. So I stopped playing RockBand for a long time until the other day when I decided to take apart my RockBand 1 drums just to see what was inside.
All you need is the RockBand 1 (I haven't tried with the RockBand 2 drums yet) drums, a screwdriver, and possibly the knowledge of how to make a simple splice.
Here is a video of me playing with them (for the first time)
Step 1: Dismantling the Drum Set
-First, you need to take off the rubber heads you would usually hit. This is very easy, all you need to to is rip them off from the side (this won't hurt anything)
-Next you need to unscrew all the screws on the backside of the RockBand drums, and basically every screw you think will help take it apart
-After you have taken all the screws out, if the plastic pieces don't separate easily, there are also some screws under the foam inside of the middle 2 drum
You should be able to take the yellow and blue wires out, but the green and red should be stuck in between some plastic