Need info on deluxe heater cable issue

[ScottH]

Working on a 65 C10 project & recently installed all of the deluxe heater parts. The only issue I am struggling with is the Heat control cable. It works fine however unlike the other 2 cables it does not appear to be anchored in any way. So when I move it the shielding moves with the cable.

Can anyone tell me how the cable shielding is anchored for the Heat cable (goes to lever by heater core in engine compartment)? Pics would be most helpful as well.

Any info is much appreciated.

Thanks