Was thinking more of a lead dropped down the post of the rider's backrest.
Your right, with the Corbin that wold be a little more difficult. With the stock seat I can get my whole hand down between the seat sections, so that would be easy to hide the wires.
The Corbin you can't even pull up on the seat pan to stuff wires.
So the rider backrest will be a bit more of a challenge.
But not sure the little warm spot that would be supplied by the backrest would be all that great of an assist.
Once you start using heat for what ails you you want to stay with it.
My wife uses heat year round, supplemented by ice. Go figure.