Hi,
I have mazda 3 2008, how can I check if I have seat warmers? (I don't have the 2 buttons),
for example my car comes without fog lights, but I added it (all the wires was ready), also for cruise control, I added alone (all the wires was ready), so I think if I have seat warmers.

Regards.

 

Wiring was included for all components in the electrical harness, optional or not, to save on costs as they do not have to produce a different electrical harness for each available version of the car. It also makes it easier to add optional items to the car during purchase if the new owner wanted to.
I doubt if Mazda would include the seat heater pads with every car and just not provide switches for them. That would not be so cost effective. You possibly can get heated seats and controller/switches from a salvage yard if you really want them on your car.