The blue box is not a sound module if thats what your'e wondering its a ac converter for the cool cathode neon tubes it converts power from the PSU to power the lights can use i have the same thing in mine and make sure all the cables leading to it are plugged in
Hi if your still having trouble with your alien head light, there should be either a red or black wire (been awhile since ive been in my machine(i have the same case)) leading from the blue box up through where the door hinges are make sure that your wire is connected to the converter and the head( you may have to disassemble your door panel to access the connection.) If the connections are there and the light is dead then so is my post. hope this helps if you are reading.
