A quick tip though, change 1 L.E.D at a time, and turn on the cluster to see if its working. Because there is a positive and a negative side, it may be put around the wrong way. I learnt the hard way by swearing 1000 times until I realised that this was the problem. So if it doesn't work first time, flip it around and see if it works.
Also be sure not to damage the thin electric film that goes around the cluster. This gives power to the bulbs and if you damage it then you may **** up the lights for good.
G'luck