In the plug on the back of the speedo in my 2000 FXDWG there are 12 positions for wires. There are only 9 wires in the wiring loom to be connected. Can anyone tell me which colour wires go in which number positions in the plug. When wired up as per genuine wiring diagram some of the digital speedos features did not work. By changing some of the wires around everything now works but the ENGINE light does not illuminate when ignition is switched on. HELP!!!!!!!!!!! Thanks.