i have a system that i want to install in my '02 M3. Car came with the business cd deck, climate controls directly below. i've seen alot of people take the climate control box and mount it where the accessory/sunglass holder box used to be. is this do-able or is that a different climate control box that can fit there ? I've seen it on newer e46's that come with the factory nav system, where the lower corners of the face are not rounded, but sharp, like the top corners. i want to install an eclipse avn6600, not sure if i can move the climate box i have to that lower compartment, and i don't want to find out @ the install that it won't work.