How To: Replace Heated Seat Element Pads

[dswp64]

I want to try replacing the 23192138 heated seat module first, as it is much cheaper, and all my elements quit working at the same time. For the life of me, I cannot located this module. I'm told it is somewhere under the passenger seat, but I cannot see it. Any idea where it is? Thanks in advance. 2014 GMC Sierra SLT, with heated and ventilated buckets.

[Chbriggs6]

@dswp64 you ever find it? Also having the same problem. Been trying g to replace this to start the troubleshooting. I don't know if it even exists.