I have an Inspirion 9400 and I want to turn it into an XPS M1710. I know that I can buy all the casing off ebay but the problem is the lights. Firstly do the lights on the XPS touchpad work on the inspiron? Secondly I read that to get the lights on the back of the screen to work, you need to solder them to a USB socket but I don't understand how to do this. Thanks for any advice.