automatic climate controls upgrade

[firepumpman]

I have a 2008 2500HD LT1 with the manual heater and air-conditioning controls can i upgrade to the digital auto controller

 

[duratothemax]

no. not without changing the entire dash wiring harness, entire dash HVAC ducting, blower motor, etc...

 

[firepumpman]

Thanks for the info

 

[TeaK]

What about the 06-07s? Can they plug in without upgrading harnesses?

 

[duratothemax]

What about the 06-07s? Can they plug in without upgrading harnesses?

no