Heat/Ac control wire on ‘02

Hi all, new Tundra owner here after spending many years with a second gen. Taco as my work truck... Winter is coming on and my AC blows cold, my heat is non-responsive. One of the two wires that connects to the tensioning gear inside the temperature control knob has come disconnected. The wire that runs towards the passenger glove box has a constricted range of motion and pinches/kinks rather than feeding smoothly when loosening tension towards hot. When i slip it back in place, it doesnt stay put. I’m new to the forum and not sure if theres a way to upload video so i attached a short video link here on my google drive... https://drive.google.com/file/d/1DLQxXw565HBrKW007VGP2oGoesCH7hnV/view?usp=drivesdk

I fear the problem lies on the other end of this wire... before i follow it, I thought i’d ask for any advice someone might have here. Thanks in advance!