No, and linking the earths together doesn't put them in series. It won't be that, as long as the earth terminals are the ones running to earth it won't matter if they are connected together or not. What do you mean about daisy chaining an ignition wire though? You aren't giving very much information, can you give us some colours? The wiring colours are to a fixed code and all mean something different.
Ok so wired as follows
Red/green powering lights to gauges
2 white wires I left one not hooked up and the other is used with the brown/yellow for ignition warning. (Could be the issue)
Blue/white for high beam light
Blacks = earths
Green/black is hooked to fuel Gauge signal
Green/white hooked for indicator light.
Power for the tacho and speedo come from the fuse block and are independent (they are on a spare terminal so nothing else is using the supply)
Edited by joyce1bro, 13 April 2014 - 11:34 AM.