Today, I used this kit on the Beolab 4500 panels. Taking the panels off from the amplifier part of the speakers is pretty simple, but one needs to pay attention that some pretty thin and short cables that are attached between the panel and the amplifier chassis. Hence, after removing the torx screws, carefully lifting off the panel and removing of the plug on the display board and the complete input switch board are required to get the panel off.
Before polishing I also removed the display board from the panel. Since the polishing process involves the use of water, it is best to protect the display board. I also covered the brushed aluminum coated part of the panel with bubble wrap to protect its surface during the polishing process. Here is a pic: