I recently installed a Pioneer NEX4600 in my 2012 Suburban. Love it so far. I used the CRUX SOOGM-16 wire harness. Everything is fine except my Pioneer head unit is telling me periodically to connect the VSS/Speed sensor to its pink wire. The problem is the Crux harness does not have a wire for the speed sensor. Ironically i found an old user manual for the Crux harness that DOES show a VSS wire. But the newer manual seems to no longer show it and there is none on my harness.

I have been scouring the internet but am not getting a definitive solution: where can i run a wire to tap into my vehicles VSS/Speed sensor to connect it to the Pioneer head unit?

Any ideas. Thank you in advance Chevy community.