I'm debating whether to switch out my front seats to 04+ or switching in a driver/passenger heater switch.

So here are my questions:
-Am I going to lose power/heat functionality if I put in 04+ seats?
-I heard somewhere that even if the 97-03 passenger heat switch is not available, the passenger seat still has a heating element. True/false?

BTW, if I find a good set of rear seats, I'm going to switch them in.

Or if anyone has any other suggestions, they are welcomed.

I think 04+ seats are always a good thing. They're bigger, more comfy, and look better, especially the leather thats for sure. Not too sure on the functionality of the heat though. You won't be disappointed switching to 04+