I want to replace the seat foam cushion in my driver's seat. I have heated and cooled seats. The local auto upholstery shops I've talked to say they don't have material that would work with the heating and cooling functions. Is there a way to get the right material other than buying it through the dealer at a ridiculous cost (if they can even get it)?

Year, make, and model would help...

Swap the foam from the passenger seat

My understanding, the foam is the most expensive part of an upholstery job

Interesting. I recently brought my vehicle into an upholstery shop to get a small tear fixed before it spread. When I picked it up he mentioned he added a little foam to some of the areas that were sagging. Heated seats haven't felt as warm since then, but I hadn't thought anything of it.

Can you get a seat from a junkyard?