Step 7: cut the trace marked in yellow with an xacto knife, and add a small piece of wire between the 2 solder pads as shows.

Note: if your ebay backlit LCD is the 3.3V version - OMIT THIS STEP.
since i have all 5V LCDs - and the link above is for a 5V LCD - this step is required. the cut trace is the 3.3V line to the LCD and the red wire instead of it sends 5V directly to the LCD.

I havent tested the 3.3V LCD but should work fine without step 7. all other steps are the same.
link to 3.3V LCD:
http://www.ebay.com/itm/LCD1602-3-3V...YAAOSw6n5XtGNq