GTA Heater Matrix

Hi

An owner here in NZ has recently acquired a GTA that is ex-Singapore, and being a Singaporean car, it was ordered with air con, but no heater. Given NZ is not tropical (!), he'd rather like a heater, so the car can be used more comfortably over the winter months.

Does anyone know how hard it is to fit a heater matrix to a car originally delivered without one? Or is this car destined to hibernate over the colder months?


Thanks

Heater matrix is inside cabin in airbox behind radio.There should be a pipe to one of the rad hoses and one to steel pipe running to engine .Hopefully just bypassed and its all there ready.Dashboard and tunnel need moving to get it in.
viewtopic.php?f=2&t=4206&hilit=matrix