What's in our seats for side airbags? I want heated seats

I'm still looking into getting heated seats but was told that b/c I have side airbags, puttin the aftermarket heated seats in wouldnt be advisable
WHY?
Is there an element in the seats that would be harmfull to the airbags or deploy them if i have heated seats?

and i'm not buyin new seats or swapping
and yes, i know 03's+ have heated seats and side airbags

I just got this reply from an Ebay seller of heated seats.
"they will work. some seats with side impact airbags have an occupant detection system in the seat. I don't like people messing around with that, disabling it or something."

Yes, if the side airbag sensor senses anything around it, it will now deploy. Of course someone on Ebay is going to tell you it works because they want to sell it.

Heated seats suck. Your ass is going to warm the seat in a matter of minutes. I've had a few buddies that have seat warmers and the coil ended up burning through the leather seat right onto their ass.