[rick3000]

I posted on my website a few days ago about how I think you would wire aftermarket seat heaters to OEM switches without doing the full OEM install like Dennis Vogel's DIY. Basically, you just wire aftermarket heaters to the OEM switches and relays, and do the wiring yourself. The only part I am not sure about is the compatibility of the relays and the two stage heater functions (high, low, off), with whatever aftermarket heater elements you choose to use.

I have not tested it, but it was a project I had been very curious about for several years, and I was already reviewing the wiring diagrams for a different project so I took a few minutes to work on the heated seats. Again, no guarantees it would work, but take a look, it might be helpful.