Originally Posted by fuddyduddy121
You would have to extend all of the tubes from the programmer up to the dashboard, and it may require some additional wiring.
Among other things, the electronic blower control module in the HVAC housing would have to be swapped out in favor of a resistor pack, and the wiring harness between there and the fan speed selector would have to be replaced...
I wouldn't even attempt this. Anyhow, once the weather warms up, the system won't be blowing air out the floor outlets so much, once the interior temperature gets closer to the preset heat setting, so that it selects outside air or air conditioning for its source, both of which are distributed from the dash vents instead of the floor.