Unfortunately I am in a campground in Florida that has Tengo and it is blocking me from uploading a photo. Will try again in a few days. However, although that carpet is glued to the plywood you should be able to see some black headed screws along the top and back edges of the box covering the heater ducting. When you find all these you should be able to drop the box and see the hydraulic lines behind the ducting. You will see these attach to the synchronizing cylinder.
John and Mary Knight
2015 Ventana 4311, 2015 Cadillac SRX