has anyone else had problems with their bose 6 disc unit? my first one wouldn't eject discs and now my second one is showing similar signs after replacing the first one about 4 months ago.

i'm convinced the bose head unit is a POS made in china. do you think it would be possible to ask for an upgrade? i know the a6 and a8 can come with a bang and olufsen system. would that head unit be a direct replacement?