03 Silverado UPGRADING TO AUTOMATIC TEMP CONTROL

hey guys, 03 silverado. Would like to uprgrade my manual temp controls to the digital one. Has anyone done this? How hard and what do I need to do this (I have defrost) Thanks!!

I would like to know as well.

There are a LOT of parts and wires. In the headliner there is a fan and sensors. Get ready to rewire your truck.............

Not worth the trouble IMO