Brittifoorumilta löytyisi tuollainen tieto josta en mene takuuseen.
Red is an incoming live from a fuse near battery
One of the yelows is output for accessories
The other yellow is output for ignition
White is output for starter motor
If you connected both yellow wires to red, the ignition should be on and most electrics should work.
If you also bridge across to the white, the engine should crank and start providing you have the car key in the switch.