what is in this box
 

Does any one recognize this box? what is in it? I guess it is the fan blower motor but not so sure.
My car is a 04 Cayenne Turbo. when i turn the fan on it makes noise. the higher the speed the louder the noise is. I removed the compartment and found the noise is from that box. I can feel the vibration in the box too. So I assume it is the blower motor. I have checked and found the blower motor is a common problem in this car. I want to order a blower but want to make sure where is the part and would like to get some suggestions from someone who had done it in the past or had the same issue as I do and what they did to correct it. Thanks for reading the thread.

ALX5