This is my first time posting here. I bought a 2.6 2 days ago and am trying to install it on a v1.5 I think. It is definitly not a v1.6. I followed the tutorial for the x3 that said it would be the same for a 2.6 but the install is done on a v1.6. When I get to the part to install the red green and grey wire I can't find the d0 for the grey because the board are not the same. I saw another picture showing the d0 on the opposite side from the other two. Is this correct and if so it looks very difficult to solder. Could someone please enlighten me? Thanks and merry Christmas! 