Removing
Disconnect the negative cable from the battery with the ignition off.
Attention: This will erase the data from the electronic memory blocks. See instructions in chapter «electrical equipment».
Remove radio.
Loosen two screws (1).
Unhook the control box at the bottom (2).
Slightly pull back the cover and remove the plug from the back.
Unhook the air distribution control shaft and remove the control unit.
Remove fan switch.
Installation
Insert the control unit, attach the air distribution control shaft.
Connect the plug to the control switch.
Attach the control box at the bottom and fix it with screws at the top.
Install radio.
Connect the negative cable to the battery. Set the clock, if necessary, enter the security codes.
Especially for Ford KA: the control unit is fixed with one clip and one screw.