I have found out that it can depending on the age of the CI. Newer ones already have the speaker grills in the camper and so a stereo can be added at the factory with 2 speakers inside and 2 outside in the galley. Older CI don't have the grills inside so speakers can only be installed in the galley. Of course you can do something on your own if you have the skill but I intend to let Cary, Gary, and the team do mine.