02/03 Climate control

Does anyone know how easy it is to change out the regular heat/AC unit for the climate controls. Would it just be a matter of swapping out the control unit in the dash or does it involve more than that?

Does anyone know how easy it is to change out...

Craig's page has a writeup, older version, but its functionally 'the same' so it at least helps to check out... check also the other info that fits that year model: http://www.cardomain.com/id/pohjola#links