Wow, you people must sweat a lot to be asking about A/C seats!

 

that and dimming side mirrors.. i hate it when im driving at night and peoples lights are still in my face even though the rear view mirror is dimmed

 

DITTOOOOOOOOOOOOOO!!!!!!

 

Get your side windows tinted. Problem solved.

 

No, heating is always cheaper and easier to produce. By simply using a resistance, you can heat a surface up. However, if you wish to cool something, it typically involves expanding gases. That's how your A/c unit works: A compressor compresses a gas (producing heat by molecules rubbing together) and then expands it in a chamber and cooling as the molecules expand.
Simply put, there is no easy way to cool your seats in your G. If you wanna shell out that kinda cash just get yourself that LS430

 

I guess you should start seeing if M seats will fit in the G...seems like the best option to me

 

There are easy ways to heat/cool... thermoelectric cooling comes to mind. TEC/Peltier cooler with a heat plate I think would work quite well. When you flow current in one way, one side gets hot while the other gets cool. Reverse the current and the opposite would happen. Now this may not get them that cool... and you are product some heat as well on the other side of the cooler. I'm not sure how effective this all would be as well as how much heat would be generated under the seat when you're trying to cool the seat down... I may have to think more about this.

Here's some basic information on it... http://www.electronics-cooling.com/R...6/sep96_04.htm

I used to deal w/ cooling high powered lasers and compact lasers and that's what we used. Alot of people also use them for active cooling setups in their computers for overclocking applications.