double din?
 

Will a double din fit in an alero?

Yes, a double din will fit. Some modification may be required to your factory radio bezel depending on the size of the double din screen.

You also may need to cut out some of the plastic behind the radio in order to get it back far enough. If you do so beware of the HVAC vacuum wires that run there!

There is a thread where people posted pics of their double din headsets. Search for it.