WHERE IS the blower resistor?????

The heating/air con has packed up completly on every setting on my MK1 xsara picasso. All other parts have been checked and the last thing to check is the resistor. Its not attached to the motor and in dispear i rang Citroen. They said if i remove the front wipers and the plastic/rubber panel/seal and look straight down i would see it. They were wrong and im at my wits end with it. The motor has two wires coming out and vanish into oblivion so its proving difficult to trace the wires to find it. Any suggestions pplleeaassee...........