i have a vanagon heated seat setup..  it includes, heated seat switch,
factory vanagon upper steering column housing cover w/ switch hole, wiring, relays.
the only thing i dont have is the heating element pads for the seats.. (you
have to completely remove your upholstry from your front seats to install the
element pads)   the element pads are basically just fabric pads with wires in
them, you can grab them out of any car that had heated seats (audi, volvo,
etc), they just basically lay under the upholstry, theyre not even sewn into the
padding.   if someone would like to take this without the heating element pads,
 otherwise i can source some element pads..  btw - the switch controls both
front seats.

chris