It should be easy enough with a multimeter and following some cables to components. Just leave the airbag and yellow connector well alone, you know that fits already.
Work on the basis that for the Audi seat: yellow airbag, black occupancy sensor, red is power motors (you don't have) plus footwell light, green is seat heating.
Trace back (or put 12v across the contacts) the 2x wires in the red connector to confirm footwell light, and trace the light in your Skoda seat back to the large connector block. It'll be a pair of the narrower gauge cables.
Black occupancy sensor has two cables in both Skoda and Audi, just using different connector blocks. It's a make/break circuit depending on whether the seat is occupied so the order probably doesn't matter, but I'd go for yellow<->yellow/green being equivalent
You are left with four wires in the green block to match up with four remaining cables in the large black Skoda block. You will have a pair of heavier duty cables (brown & purple in the Skoda block and looks to be brown stripe and purple stripe in the Audi seat?) that will almost certainly be 12V supply and Earth for the heat mat, use your multimeter on the car loom to work out which is which. Two narrower gauge cables left that will be trigger wires for turning on/setting or sensing heat level. I'd do some research on wire colours for both the Skoda and the Audi examples you have before gambling with these, ETKA online should have the necessary wiring diagrams.