Heated rear seat options?

[kHaN]

This truck is my daily(family)/towing/off-road truck. We do long trips during winter months so a little bit of comfort is nice to have. I recently bumped into someone with a Gen2 that has the rear heated seat option, so will be examining his truck and look into the parts needed to enable on mine.
Once I do then I'll look to post here the parts needed.
My kids would have loved to had these installed already being that we had a few weeks of single digit temps here this winter.

 

[kHaN]

My assumption is that the wire loom will have the connectors there so my hope is that it should only need to add the buttons to center console plus the heating elements (maybe additional module). Probably wont be that easy but one can hope