Can anyone help me please. My Q2 has a sonos sound system. The sub is apparently ok to sit in the space saver wheel 19"). However the retaining screw is too short to pass through the sub and wheel. Any suggestions? Also the sub sits proud of the space saver so the boot floor rocks on its lowest level. Unfortunately both points (screw length and boot floor setting) were confirmed by Audi as the screw is long enough and the wheel and sonos will not impede the boot floor on its lowest setting.