the initial research and developement was a long process but after doing the prototype i then took my Mivec one and did it in under 30 minutes.
the dimmer roller only works on the other units not the actual blue,BUT i inserted a relay that operates when the park lights/headlights/spotlights are turned on it flows through a 1000 ohm resistor and dims the cluster to a good vizibility for night drivers like me that preffer dark dash colours..
Yes my Fuel Guage is working fine,i just fulled up night before lol...