Probably can't be done right without a
CRAZY amount of OEM Wire Harness & Module Swap Installation and PCM Re-Calibration Hassles. Read
THIS PDF and just
LOOK at all of the Extra Features accessible through the Push Button Controls mounted into the Steering Wheel that require corresponding Wiring and Acceptable Modules that may
not be included in the "Plain Wrapper" Versions of the Trailblazers and Envoys Harnesses.
Take the time to Examine your own RPO Features on the Silver Sticker Pasted inside of your Glove Box to get a better understanding that there is a
REASON those RPO Listings are usually generated
AT THE FACTORY and they seldom if ever enjoy allowing different Features being "Added On" later as an afterthought:
If your Present Steering Wheel WORKS.. (Including the Clock Spring) ... Don't FIX It.