Is there a way to make my leather seats working?

Just trying to understand what you are looking to do. You have non power seats and you replaced them with leather power seats?

If you are trying to add power seats to a non power seat vehicle then you are going to have to run power and ground to the switch as shown in the diagram below.

https://www.2carpros.com/articles/how-to-check-wiring

The seat should be wired already from the switch to the motors so you need to supply the battery voltage and a path to ground which you can do by just running a wire from the switch to the closest both in the sheet metal.

Please let us know if you are working with something different. Thanks

This is the wiring diagram for the coupes drivers seat. It looks like you can use the seat as long as you have the control switch and the harness plug for the seat to connect to. You will need to add the power and ground circuits, the number 2 and 8 pins are the grounds, those were connected together and attached to the seat bolts for a ground. Then pins 4 and 10 both are connected to a power feed with 20 amp fuses in the lines. It looks like the sedan used the same pins and connector that had a jumper that connected to the main harness under the carpet. If you can find that harness and the short connecting cable it would be a plug and play system. You may need to add the fuses to the fuse box though to get power to that harness. I attached both of the diagrams for the seat below, the first is the coupe, second the sedan.

Are these seats the fully optioned ones with heat and motion? How many connectors are under the seat assembly? There should be the main harness connector C-122 which plugs into the original harness for the coupe you got the seats from. On the wiring diagrams if you follow the wires out to the area tagged C-122 it should be the pins in that larger connector under the seat.
All of the power feeds need to be fused, the reason for the multiple fuses is because you could move the seat in two directions and that would blow a single 20 amp fuse.

In that white connector that plugs into that switch, purple, pink and brown should be the powers for the seat motors for for aft and recline as well as the lumbar. The grounds for the Coupe version are gray and black.

The white connector under the seat where all the wires go to one spot should be the C-122 connector. That would be the connector you show in the video with the crimp connectors next to it and is where you should wire from. If you look at the diagrams you will see the info called out like the attached image. The 1 with green line points to the connector on the switch itself, then those wires run down to the circled in red connection 2 which should be the main harness connection under the seat. Notice how the fused power starts at the fuse box with red, then switches to orange to C-122. Then on the seat side it becomes a brown wire to the switch itself. So to power that switch you would go to C-122 and find pin 14 with a brown wire coming from it up to that switch. That pin is where you would connect power. Then if you look at the ground side it shows 2 black wires that splice together to pin 18 in C-122. So you would connect that point to ground. There are more than one ground and power feed depending on which options the seat has, so the power seat section has 2 power feeds, the lumbar section (which is the item used in this example) has it's own and then if it has the heated option, that has another 2 power feeds. If your seat has the heat option you will need to figure out a way to control those if you want them because those are normally controlled by buttons on the dash that run through the main harness down to C-122.

Power goes to the plug under the seat. It's possible the switch is bad or there is a missing part. I would test the motors themselves using a set of jumper wires to battery power. The motors work by simple polarity reversal. So power one way the motor turns one direction, reverse it and the motor goes the other direction. You can test that at the seat switch connectors. For the lumbar motor that would be the white wire and a pink wire in the lumbar switch. For the main motors the colors are in the two earlier diagrams. If the motors all work then you need to check if power is making it to the switch through your connections. The switches do all the polarity changes, no relays involved.

Testing the switch involves a similar process, apply power to the input feeds to the switch then toggle each switch while watching the motor output side. If power is going into the switch you should be able to light a test light at each set of motor pins when the switch is moved. All the switch does is swap the positive and negative power feeds to the motor.