Rear Radio/air-heat controller.

[mike06train]

I've got a knob missing on the controller. They don't sell just the knob you have to buy the whole unit. Has anyone replaced this and is it something you can do yourself?

 

[blueflamed03]

check LMC Truck, they may sell just the knobs.

 

[zach2011]

I replaced the unit very easily. The surrounding panel is held on by clips, then you unplug and unscrew the 4 screws holding it in.