I researched on ebay looking for the cheapest leds and that popped up. When i looked over the advertisment it specificly said that this does not work on the xbox slim. Now the only way they might work in you box is: If the dvd cable that comes with it is compatible with the slims dvd cable( then you can switch them out), If you feel like stripping the wires on the dvd(finding whats specific to the voltage the storms) and wiring it in and using heat shrink tubes, or i suppose if you can find the correct voltage on the board you can solder it in. (let me know if my post is compleatly irrelevent.)

in short no... but if you have a soldering iron and know how to use it then you could solder to a 12v point on the slim motherboard (but be very careful - obviously) OR attach to an external 12v source like a power adapter