Probably the reason you hear the sounds on your left but they feel like coming from your right ear is because basically the BAHA transfers the sound to the cranial bone, and then the sound travels to your right functionning cochlea (the part of the ear that converts sound to neurological information), which in turn transmits the information to your brain. Of course the brain only sees that it received information from the right cochlea, hence it interprets all sound coming from the right!