Just Fishing
Can't fix stupid
Did you take the seat out, or leave it in place?
I took the whole seat out and sat it on the ground next to the truck.
I left the seat belt in place, I just wanted more room.
One somewhat pits was unplugging the heater unit
I found it easier to remove the cushion and heater element from the seat completely.
Then I could freely glue the heater to the new foam, and install the cover.