promotional cd player

On the market is a Bose PM-1 portable CD player - it is a laser player and comes with batteries and an owner's manual - per Bose it was a promotion but I don't know when - states it uses a 6V DC 350mA AC power adapter - but doesn't inlude one and Bose does not sell one - anyone have any idea where you could purchase this? I have searched the name and found just about everything else. even purchased a multi - adapter but pin is too long - any suggestions? By the way - Bose should sell this - it is awesome...