Pull the HVAC unit towards you a little bit (until 5 bolts pulled out from the fire wall) then pull the right side first as indicated by an arrow to remove the whole unit.
The HVAC unit was removed. I did not cap the end of two heater lines and some antifreeze spilled on the floor when I removed the HVAC unit.
The positions of 5 mounting bolts are indicated. A big round hole in the right is for blower fan and a rectangle hole in the middle is for heater/AC lines.
I found an unused connector just underneath the center floor duct in my TJ.
Top view of HVAC unit.
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