How to access heater/blower on a nissan micra NEW SHAPE?

Hi i have a new model nissan micra (2006) and need to replace the resistor on the blower heater as it will only work on level 4. I understand gaining access to the heating unit is NOT the same as accessing the resistor on the OLD micras. So please no 'micra.org.uk' "solutions" as they DO NOT APPLY with the new model micra!
I have been given a quote of €120 just to fix this in a nissan garrage.this seems very expensive considering the problem. please help!