@MikeBMW, I think GM Vehicle Stability Control Switch 84347196 would work out the box? You would still have the blank plate. You would need to get wires from the 4 aux switches to the engine bay. I haven't tackled that part of the project yet.
Since my truck isn't prewired for the aux switches. I am planning on ordering pins and running 4 wires to the engine bay to a dedicated relay/fuse block. So anytime the switch is pressed it will complete the ground on the circuit. That's my plan but I haven't gotten around to it yet.
@cmartiniii, I think there is some confusion. I was talking about creating a new switch panel for trucks that have TCS, Bed lights, and Hill decent. Based on my research that combo doesn't exist with those three plus 4 aux switches. I still haven't tackled using or wiring the 4 aux switches.
My post just mentioned taking parts from two switch banks and making one that will work in my truck with those three original options.
@MikeBMW
Are you looking for the same set up I had. Convert from the three switch to the seven switch? I had tcs, bed lights, hill decent and converted it to those three with 4 aux switches?
@rock1500 It took a bit of work to get them disassembled and put back together. If anyone is interested they can shoot me a PM and I would be happy to look into what it would cost to do. I wasn't sure if there would be a market for it. There is some soldering and de-soldering of some micro components to make it work like it should.
I Just completed a breakdown of the switch bank. I have a 2016 1500 Z71 with the three switch panel, TCS, Bed Light, Hill Descent Control. I bought two additional switch banks and opened them to create one that would work for me. Now I have one working bank with TCS, Bed, Light, Hill Descent control, and 4 aux switches.