I have an all original 1991 NSX with the original ACURA badged CD changer mounted in the trunk. It's not operating properly and so I purchased a replacement from a wrecked car. But I don't know how to remove the original and replace it. I have seen where some models have bracket's that tilt all the way down (90 degrees) providing access to the four screws attaching it to the holding bracket. My only tilts partially (not even 45 degrees) just enough to allow for CD magazine insertion/removal. This makes access to the four holding screws virtually impossible. There has to be a straightforward way to remove the changer or at least to allow it to tilt flat (90 degrees) for access to the screws. Can anyone help? Thanks!