hi does anyone know how to change the resistor we have a 61 plate fabia but it doesn't have a glove box can anyone help please 

@jackiefrank - There is more than one resistor in a typical car. We're going to need more information than "somewhere behind the fascia".

If you mean the fan resistor, where a normal opening glovebox sits, do you have like, an alcove or shelf? If so, you might see the screws to release the passenger airbag if you look inside, near the rear or upper area.