Noises from Climatronic

Anyone else with the climatronic continually hear "snap-crackle-pop" noises coming from various locations throughout the interior? I assume it is the system opening and closing the different vents, but it is very annoying and I am wondering if it is normal...?

I love this car, BUT... all of the strange noises I've had to deal with (air vent rattles, fuel line rattles, and now this) really piss me off