Well guys the problem here is not the controls is the evaporator enclosure, on 98 and earlier cars the fins inside this enclosure was one for all the A/C outlets on the dash. THe cars equiped with dual climate control have different fins to redirect the hot/cold air to each set of windows. Still have 1 evaporator and 1 heater core but the evaporator enclosure is different to provide a single set of fins to each side of the car. IF you want to do that there a lot of stuff you must change before the controls you ask for could do the job