No problem. There'* no better time than winter.
Something else I found out as I've messed with this stuff more and more. GM always used the same ressistance for high and low on their rocker switch setups. (2000+ Bonnevilles have a touch button setup). This allows us to use nearly any switch that was common to GM.
If they had heated seats Grand Prix'* 97+ got one, Regals 97+ had two. If I were to look for the stuff at the JY, I'd hope for a Regal since they didn't stitch the element to the leather every 2" along the seats like the GP'*. But the GP'* got a larger/fuller heating element and the Regals were mostly a small butt pad and lower back pad.