I yield as always to John at AudioConnection. Also...mark which components come out of which speaker. One time I accidentally installed the wrong crossover in the wrong speaker, and I had to take it apart again. It sounded VERY wrong. The serial numbers are there, but just double check...( I would put a piece of tape saying left or right on the different pieces). Also, the screws are very soft...I would ask Vandersteen for a few in case the heads strip. The crosssover (the one higher up...amp on the bottom) may not be easily removed....when putting your fingers behind the plate to get it out, don’t bend any wires back there (I did that too). Keep pulling - it will come... get a coke and resume your work. When you get it all done with the new batteries installed, the speakers will sound more open, relaxed and better.