So I really didn't get any pics of the new foam going in, but that heat/cool pad that I removed from the old one is like small bubble wrap type of thing. It is a sealed bag with like a honeycomb type of string reenforcement inside. That port in the front goes through the seat and attaches to the black plastic air tube under the front. Attached to the top of this appears to be a sewn on cloth with heat wires running across. The wire loom is attached to the rear corner and runs under the seat.
I'm not too sure how this cooling thing works exactly. Either air runs through it and you feel the cooler air under your butt, or there are fine perferations on the top of it and the air leaks out the top through the "perforated" leather on the seat and you feel that on your butt.
Here are those pics again of the heating/cooling part on the seat.
Here's the port in the front of the seat
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Here's the pad on the cushion. It was stuck down with 3 strips of adhesive tape that I carefully pulled it off of.
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Tape strips were in front, middle, and rear. I have some 3m double sided scotch tape that I used to stick it down to the new foam before attaching the leather cover.
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As I reassembled the seat I wiped down/treated the leather and also cleaned all the plastic trim surround that goes around the sides and back before reinstalling. Here's the seat before putting back in yukon
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And of course I used this opportunity to vacuum where the seat goes
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