I have got the +ve from the heater power. I unplugged one of the power feeds, turned on the lights and the heater panel didnt light up. Using the powers of deduction (and a 12volt bulb) I tried each wire in turn and found the one that has power when the lights are on. All I need now is to wire up the gauges to ignition, get a new olive for the boost gauge and bam, jobs done
Morning Dave dude sorry