How to wire rear heated seats?

[eljay]

I cannot find a detailed DIY on what is involved in installing OEM rear heated seats into a car that did not come with them.

I know I'd need the rear panel with the two switches. But what kind of a harness is needed to connect the harness from the rear seats to the switch panel? And then how would I connect it the power to that etc?
I am hoping for a clean OEM retrofit without splicing etc., so I'm trying to find the right components.

Thanks

[CyberPMG]

Only thing I can think of is to find a 2002 A4 or 2004 S4 in a salvage yard that has the rear heated seats and grab the parts.

[eljay]

Only thing I can think of is to find a 2002 A4 or 2004 S4 in a salvage yard that has the rear heated seats and grab the parts.

Yes, that's what I'm hoping, but I am wondering what parts to grab when I do find a car like that. I will likely not have an option to get them myself, so would need to describe to the yard exactly what I need them to pull. So, I'm trying to come up with a list of switches, harness etc. needed.