Center Stack Switches, add

[Gages50]

I would like to make these two fake switch locations on the center stack switch block functional.  They are cosmetic only, non functional.  Do I need to replace the entire switch block or can I add two more switches to the existing?  Anyone know part numbers?

 

'21 Sierra SLT 2500HD CC Duramax

[ohiost90]

Did you ever get those switches to work out for you?  I have a 2022 coming(someday) and would  love to use those spots for some lightbars and other goodies.  

[Jeff Antley]

I had that all apart.
The switches are in groups of 3. I spent a good bit of time trying to make the blanks work. I do a LOT of cutting Into vehicles but ultimately gave up on this. I installed these switches for my train horn.  I’m pretty happy with it like this. 
 

 

[Lizard Power]

They are in blocks of three.  There was a Youtube video of someone doing it, but it was removing the wires from the back of the plug and moving them around.  Time consuming ans intense.