My wife wants to add a heater to the driver's seat on her 06 CLS500, my questions are:
Is the car prewired for a seat heater?
If so, what do I need to install the heater?
I have found aftermarket parts but I prefer to use OEM MB parts.

This is the first MB we (she) have owned. So far even using the Nav system is far too complex for me.

Thanks in advance.

Marty