Nick is correct
On our 2005 H41 there is an inverter dedicated just for the Bose 3-2-1 and TV, as all installed at the factory. It's on a 12V DC breaker labeled 'Entertainment'. That inverter is located next to the Bose Acoustimass bass module. It is totally separate from the Freedom inverter/charger, also installed at the factory. The Bose/TV system is not on any other AC outlet.We run our Bose 321 just the way Mark describes, and have never blown a fuse. Ours works fine in any mode: with charger on, charger off, shore power on, shore power off, etc.One thing we learned is to wait a minute after turning the Entertainment breaker on to allow the Bose unit to initialize itself, before touching anything on the Bose. If we touch anything too soon, the unit just does not respond at all, like it's dead. In the Bose instruction manual is a restart procedure about unplugging the Acoustimass module and plugging it back in again which can sometimes resolve this, kind of like a reboot.As Nick suggests too, try Hunter customer service on this one to see if they have any other ideas. Also if you Google 'Bose 3-2-1 blown fuse', it seems others are having similar problems with this unit in their homes, and not just boats.