I wonder what the option costs, where it is available. The factory setup is better, but probably costs more than a grand.

I'd really like a diesel-powered heater, and may get an Espar. It would be very nice to get in a warm car when leaving work in the evening.

Heating the coolant in the engine would help a lot, but better yet would be to also turn the climate control on a half hour or so before I leave, simulating the factory setup. Does anyone know if there is a way to put the N22 in REST mode using the wiring inside the dash?