Ok, i have read all the docs about changin the cluster colour using leds and also the lcd displays using coloured paper etc... but all seem to be on XH and EF and above.

I want to know how much success people have had on and EA-ED, and if they at all were able to change the needle colour - it looks like orange plastic so i not sure of the possibility of changing those...

i have gone red LEDS on mine only because you have to change the background colour etc to get the effect of the other colours

yeh mate you'll be struggling to get any other colour than red orange or maybe a yellowy orange, you'll be sruggling to get blue or anything like that.