2.5na into swb petrol - heater plugs

Hello anybody wired up the heater plugs when converting their petrol landy to diesel. Was wondering how you did it. I already have diesel ignition switch.

Been a couple of years since I did it but, I kept the petrol ignition, I wired the fuel stop solenoid from the white coil cable. I used the 2.5 engine harness which has a spare brown cable for the heaters. If using the series wiring I think you could splice the main brown cable or run a new one from the starter solenoid or battery. I wired it via an in line fuse to a 100 amp relay which is activated by a push switch inside the cab. This is powered from the choke cable sensor so the orange cold start light comes on in the dash. Not needed but I like it. I am no electrician though, and mine does like a lot of heat from the glow plugs to start, at least 20 to 30 seconds. There are threads which explain it much better.

thanks for your help